Genmax GM15000ET Tri-Fuel Portable Generator User's Manual

Safety Information

⚠️ WARNING: SAVE THIS MANUAL FOR FUTURE REFERENCE

This manual contains important information regarding safety, operation, maintenance, and storage of this product. Before use, read carefully and understand all cautions, warnings, instructions, and product labels. Failure to do so could result in serious personal injury and/or property damage.

Safety Warning Levels:

DANGER: Failure to follow the instruction will result in being in peril of your life or extremely serious injury.

❗ WARNING: Indicates a hazardous situation which, if not avoided, could result in death or serious injury.

⚠️ ATTENTION: Failure to follow the instruction will result in minor injury.

ℹ️ CAREFUL: Failure to follow the instruction will result in the damage to your generator set and other properties.

Carbon Monoxide (CO) Hazard:

? POISONOUS GAS HAZARD: Engine exhaust contains carbon monoxide, a poisonous gas that could kill you in minutes. You CANNOT smell it, see it, or taste it. Even if you do not smell exhaust fumes, you could still be exposed to carbon monoxide gas.

[CO DETECT Symbol] CO DETECT technology monitors the accumulation of carbon monoxide (CO), a poisonous gas produced by engine exhaust when the generator is running. If CO Sensor detects unsafe elevated levels of CO gas, it automatically shuts off the engine. CO Sensor is not a substitute for an indoor carbon monoxide alarm or for safe operation. DO NOT allow engine exhaust fumes to enter a confined area through windows, doors, vents or other openings. Generators must ALWAYS be used outdoors, far away from occupied buildings with engine exhaust pointed away from people and buildings. Meets the requirements of ANSI/PGMA G300-2018.

• Operate this product ONLY outside far away from windows, doors and vents to reduce the risk of carbon monoxide gas from accumulating and potentially being drawn towards occupied spaces.
• Install battery-operated carbon monoxide alarms or plug-in carbon monoxide alarms with battery back-up according to the manufacturer's instructions. Smoke alarms cannot detect carbon monoxide gas.
• DO NOT run this product inside homes, garages, basements, crawlspaces, sheds, or other partially-enclosed spaces even if using fans or opening doors and windows for ventilation. Carbon monoxide can quickly build up in these spaces and can linger for hours, even after this product has shut off.
• ALWAYS place this product downwind and point the engine exhaust away from occupied spaces. If you start to feel sick, dizzy, or weak while using this product, shut it off and get to fresh air RIGHT AWAY. See a doctor. You may have carbon monoxide poisoning.

CO Sentry Indicator Lights:

• Red Light: Carbon monoxide has accumulated around the generator. After shut-off, the RED indicator light in the CO Sentry area of the control panel will flash to provide notification that the generator was shutoff due to an accumulating CO hazard. The RED light will flash for at least five minutes after a CO shut-off. Move the generator to an open, outdoor area far away from occupied spaces with exhaust pointed away. Once relocated to a safe area, the generator can be restarted. Introduce fresh air and ventilate the area where the generator had shut down.
• Yellow Light: A CO Sentry system fault occurred. When a system fault occurs, the generator is automatically shut down and the YELLOW indicator light in the CO auto-shutoff area of the control panel will flash to provide notification that a fault has occurred. The YELLOW light will flash for at least five minutes after a fault. The generator can be re-started, but may continue to shutoff.

NEUTRAL FLOATING: For portable generators where the neutral is floating, the operator's manual shall include the following wording or equivalent: The portable generator stator winding is isolated from the frame and from the AC receptacle ground pin; and Electrical devices that require a connection between one conductor pin and the grounded receptacle pin may not function properly.

Before Using the Generator: Be familiar with operation and quick shutdown methods. Never use for medical support equipment. Do not modify. Do not use in rain or wet areas. Do not connect to power company wires. Comply with labor safety, fire protection, and electrical industry laws. Do not connect parallel operation terminals except with dedicated wires.

When Adding or Draining Gasoline: Turn engine OFF and let it cool for at least 2 minutes. Relieve pressure slowly. Fill or drain outdoors. DO NOT overfill; allow space for expansion. Wipe up spills and let the area dry before starting. Keep fuel away from ignition sources. Check fuel lines, tank, cap, and fittings for leaks.

When Starting Equipment: Ensure spark plug, muffler, fuel cap, and air cleaner are in place. DO NOT crank engine with spark plug removed.

When Operating Equipment: DO NOT operate inside any building, carport, porch, mobile enclosure, marine applications, or shed. DO NOT tip engine or equipment at an angle that causes fuel to spill. DO NOT stop engine by moving choke to "Start". DO NOT exceed generator's wattage capacity. Start generator and let engine stabilize before connecting loads. Connect loads in OFF position, then turn ON. Turn loads OFF and disconnect before stopping generator. Use generator only for intended applications. Operate only on solid, level surfaces. DO NOT expose to excessive moisture, dust, dirt, or corrosive vapors. DO NOT insert objects through cooling slots. If connected devices overheat, turn them off and disconnect.

Parallel Kit Precautions: Follow kit instructions. Only connect two identical Inverter Generators. Connect only to "Parallel Outlets". Do not remove or connect kit while generator is running. Do not use kit attached to only one generator.

Safety Precautions for Gasoline and Gasoline Vapor: Fire and explosion hazard. NEVER loosen or remove the fuel cap while the generator is running. Turn unit off and allow to cool for at least five minutes before adding gasoline. Loosen fuel cap slowly. In case of gasoline fire, do not attempt to extinguish unless the engine/fuel control switch is OFF.

Liquid Petroleum Gas (LPG/Propane): Fire and explosion hazard. Never use a damaged gas container, hose, or cylinder. If you smell propane, close the cylinder valve immediately. Check for leaks with soapy water. Do not smoke or use open flame to check for leaks. Contact a qualified technician for repairs.

Natural Gas (NG): Fire and explosion hazard. Never use a damaged supply line or hose. If you smell methane, close all gas sources immediately. Check for leaks with soapy water. Do not smoke or use open flame to check for leaks. Contact a qualified plumber for repairs.

Names of Components

Description of Generator Components:

• 1. Recoil Handle: Pull to start the engine.
• 2. NG/LPG Inlet: Connect LPG (propane) or NG (methane) as fuel.
• 3. Control Panel: Contains the reset breaker, outlets and warning lights.
• 4. Muffler: Avoid contact until the engine is cooled down. The spark arrestor prevents sparks from exiting the muffler. It must be removed for servicing.
• 5. Magnetic Oil Dipstick: Absorbs iron filings in the engine oil. It is recommended to screw out the oil dipstick every 50 hours to clean it.
• 6. Wheel
• 7. Battery: Power is supplied when the generator starts. (Model: 6DM6.5 12V 6.5Ah 10Hr)
• 8. Handle
• 9. Thickening Pump: Starting the generator at -5°C to -20°C may cause difficulty in starting. Press the thickening pump button three times before starting, which can make part of the fuel enter the combustion chamber first, so that it is easier to start.
• 10. Fuel Source Switch: Choice of fuel source.
• 11. Air Cleaner: To purify the waste gas.
• 12. Carburetor
• 13. Cylinder Head
• 14. Spark Plug
• 15. Fuel Tank: Store the added gasoline.
• 16. Fuel Tank Cap: Open the fuel tank cap and fill with proper amount of gasoline.

Assembly

Weight hazard: Always have assistance when lifting the generator. Never attempt to lift the unit by the handle. Hold the unit by the frame and use proper lifting techniques to reduce the risk of back injury.

This product requires assembly. Do not attempt to operate if items are not assembled as instructed. Using an improperly assembled product can be hazardous and could result in serious personal injury.

Assembly Parts List:

• A. Handle: QTY: 2
• B. Wheel: QTY: 2
• C. Support Leg: QTY: 2
• D. Washer Used for Wheels: QTY: 2
• E. Axle Used for Wheels: QTY: 2
• F. Hitch Pin Used for Wheels: QTY: 4
• G. Bolt M850 Used of Handle: QTY: 2
• H. Rubber Washer Used for Handle: QTY: 4
• I. Bolt M816 Used of Support Leg: QTY: 6
• J. Nut M8 Used for Handle and Leg: QTY: 4

Installing Support Leg:

Parts needed: Support Leg 2, M816 screw 4, M8 Nut 4.

1. Raise the front end of the generator high enough to gain access to the bottom of the frame. Securely position props underneath to support.

2. Line up holes on the support leg bracket to the holes on the front of the generator frame.

3. Attach the support leg using screws and nuts.

Installing the Handle:

Parts needed: Handle 2, M850 Screw 2, M8 Nut 2, Rubber Washer 4.

1. Position handle, rubber gasket and bolt.

2. Push the bolts one by one through the holes in the handle, the rubber washer, the frame and the rubber washer.

3. Tighten nuts securely. Do not over tighten.

4. Repeat these steps to install the second handle.

Installing Wheels:

Parts needed: Wheels 2, Axles 2, Hitch Pins 2, Washers 2.

1. Raise or tilt generator so you can slide the wheel axle pin into the wheel, the washer, the wheel mounting hole located on the side of the frame.

2. Secure the wheel assembly by reinserting a hitch pin through hole at the end of the wheel axle and pressing until it locks into place.

3. Repeat process on the other side of the generator to install the second wheel.

Pinch point hazard: Do not place your hand or fingers between the handle and the generator's frame.

Do not alter or modify this product unless instructed to so in this manual or by the manufacturer. Do not use attachments or accessories that are not recommended for use with this product. Making unauthorized modifications and using incompatible accessories can damage the unit and void your warranty.

Control Functions

Control Panel Features:

• Fuel Source Switch: Use the fuel selector switch to choose a gasoline, propane, or natural gas fuel source.
• Voltage Switch: Switch between 120V and 240V voltage as required.
• Main Switch: Manage battery power and shutdown. Tip: If you do not use the generator for more than 7 days (168 hours), please press the main switch to the "OFF" position, which can prevent the battery from running out.
• AUTO GEN START SW.: Connect the automatic start/stop device to the communication interface through the automatic start/stop connection line, and press this switch to the ON position. The generator will be controlled by an external device with automatic start/stop function. After this function is enabled, the push start button and remote start start/stop button and remote start are disabled.
• AUTO GEN START/SERIES: The communication interface for automatically starting and stopping the generator. Used to connect equipment with automatic start stop function.
• Ground Terminal: The ground terminal is used to externally ground the generator.
• Battery Charging Port: Charge the generator battery.
• Main Circuit Breaker: The main circuit breaker controls total output of all outlets to protect the generator from overload or short circuit.
• Low Idle: When turned to the ON position, the engine will sense the load needed and run at a slower RPM to save fuel.
• Start/Stop Button: Press this button, the engine can start and stop.
• Circuit Breakers: The circuit breakers protect individual circuits from electrical overload.
• DC Cigarette Lighter Outlet: 12V DC 8.3A.
• DC Protector: If the generator is overload, the DC protector will trip to block current.
• 120V AC 20A 5-20R Outlet: The outlet is capable of carrying a maximum of 20 amps.
• 120/240V AC 30A L14-30R Outlet: The outlet is capable of carrying a maximum of 30 amps.
• 120/240V AC 50A 14-50R Outlet: Receptacle can supply a maximum of 50 Amps.
• CO Alarm: Flashing red light: dangerous levels of carbon monoxide gas have built up leave immediately until area has aired out. Move generator to well-ventilated area before operation. Flashing yellow light: carbon monoxide sensor malfunction. Sensor needs service.
• Light Switch: Press first to turn on the LED light and second to turn off the LED light.
• LED Light: 1. The LED light can be used normally when the generator is running, and the LED light cannot be used when the generator shuts down. 2. If the LED light is not turned off, press the one-key start button (or remote control key) to stop the generator while the main switch is not turned off, the LED light will automatically turn off after 30 seconds. 3. Press the one-key start button (or remote control key) to stop the generator and also turned off the main switch, the LED light will go out immediately.

Output Description of the AC Socket:

The generator can output power simultaneously from different sockets, but the total power output must not exceed the rated power of the generator. Loads cannot be connected to the same socket simultaneously if it would exceed its capacity.

Digital Display Center:

• ⏱️ Single Run Time: Represents single run time, goes from 0 at each startup.
• ⚙️ Total Operation Time: Represents total operation time of the generator. (Tip: The total operation time shall start to accumulate after the generator runs for one hour. It will not be displayed when the generator runs for less than one hour. The total operation time shall be accumulated by hours.) The two factors (⏱️ and ⚙️) are displayed alternately every 8 seconds.
• VOLTAGE: Voltage display: 120V and 240V switch every 16 seconds.
• FREQUENCY: Frequency display.
• LOAD: Load power display.
• POWER: Green light means normal operation.
• LOW OIL: Red light means the amount of oil is too low.

Preparations

Adding Engine Oil:

No oil is filled into this generator when being delivered. Do not start up the generator without filing sufficient oil. Your generator was functionally tested in the factory and may contain minimum residual oil. Additional oil is required to operate the unit. Do not overfill.

The recommended oil type for typical use is 10W-30 automotive oil. Refer to the "Recommended Engine Oil Type" chart for temperature-specific recommendations.

Recommended Engine Oil Type Chart:

Ambient Temperature: -20°F (-28.9°C) to 120°F (48.9°C)

• 5W-30: For temperatures below 20°F (-6.7°C)
• 10W-30: For temperatures between 0°F (-17.8°C) and 80°F (26.7°C)
• 10W-40: For temperatures between 20°F (-6.7°C) and 100°F (37.8°C)
• 5W-30 Full Synthetic: For all temperatures, especially cold starts.

Procedure:

1. Place the generator onto a horizontal plane surface.
2. Slowly unscrew and remove the oil dipstick.
3. Using a funnel, add the appropriate type of oil until the oil level is at the proper level (SAE 10w-30 is recommended for general use). DO NOT OVERFILL. Replace oil fill cap/dipstick and secure maintenance cover.
4. Check engine oil level daily and add as needed. Reinsert the dipstick, but do not tighten it, and remove it again to check the oil level. The oil level should reach the full liquid level as shown in the figure.
5. After refueling, tighten the oil dipstick and wipe off any surrounding oil.

Adding Gasoline:

? TO PREVENT SERIOUS INJURY FROM FIRE: Fill the gasoline tank in a well-ventilated area away from ignition sources. If the engine is hot from use, shut the engine off and wait for it to cool before adding gasoline. Do not smoke.

1. Make sure the generator is on a solid, flat, level surface.
2. Unscrew the fuel cap and set it aside.
3. Slowly add gasoline to the fuel tank. Be careful not to overfill. Leave a minimum of 1.5 inches (3.8 cm) of open space for fuel expansion.
4. Replace the fuel cap and wipe up any spilled gasoline with a dry cloth, then remove the cloth from the area.

DO NOT OVERFILL THE GAS TANK. Overfilling can result in a fire, explosion, or death. Gasoline fumes are highly flammable. Always check for gasoline spills.

ALWAYS use CLEAN, FRESH, unleaded gasoline (87-93 octane) in this unit. NEVER use OLD, STALE, or CONTAMINATED gasoline. Never use an oil/gasoline mixture. Avoid getting dirt or water in the gasoline tank. Gasoline can age and make starting difficult. Never store for extended periods with gasoline in the tank. Wipe up spills and allow excess to evaporate before starting. Do not start the engine while the smell of fuel hangs in the air.

Connecting an LPG Tank:

Confirm that the re-qualification date on the tank has not expired. Ensure propane tanks are purged of air and moisture. Position the propane tank so the hose is not sharply bent or kinked.

? Explosion hazard: DO NOT start generator if you smell propane. ALWAYS fully close the propane tank valve and disconnect the LPG hose from the generator when not in use.

1. Turn the generator OFF and place on a flat surface in a well-ventilated area.
2. Verify that the LPG tank valve is in the fully closed position ?.
3. Remove the cover on the generator propane inlet.
4. Screw the quick connector onto the LPG/NG inlet.
5. Tighten the LPG hose to the LPG/NG inlet of the generator. IMPORTANT: DO NOT use thread seal tape or any other type of sealant. Push back the quick connector collet of the LPG hose, insert it into the generator LPG/NG inlet, loosen the quick connector sleeve, and make the sleeve clamp the propane/methane inlet.
6. Remove the safety plug or cap from the LPG tank valve and attach the other end of the hose to the LPG connector on the tank. Hand-tighten.
7. Turn the LPG tank valve to the fully open position ?. Check all connections for leaks by wetting the fittings with a solution of soap and water. Bubbles which appear or grow indicate a leak. If a leak exists, turn the LPG tank valve to the fully closed position ? and tighten the fitting. Open the LPG tank valve and recheck with soap and water solution.

Connect the Natural Gas (NG) Supply Line:

? Fire and explosion hazard: Never connect or disconnect the natural gas hose while the engine is running. Do not smoke or create sparks while handling natural gas. Always turn the engine off and allow the generator to cool for at least five minutes before connecting to natural gas.

Never use a natural gas supply line, natural gas hose, or any other fuel item that appears to be damaged. To reduce the risk of injury, perform a leak test any time the natural gas hose is disconnected and reconnected. ? Explosion hazard: If you smell methane, do not start the generator. Always completely close natural gas supply line valve and disconnect natural gas (NG) hose from generator when not in use.

1. Turn the generator off and allow the engine to cool for at least five minutes.
2. Verify that the gas is turned off at the natural gas supply line.
3. Screw the Natural Gas Adapter onto the natural gas supply line. Contact your local gas company for guidance on accessory connection to a natural gas line. A qualified contractor must ensure pipe supply line threads are clean and in good condition. Pipe connections must be made using a gas rated 'dope' or PTFE tape.
4. Connect the natural gas hose to the natural gas supply line. Pull the quick connect collet rearward, insert the natural gas hose nipple, then release the collet; ensure a solid connection is made.
5. Tighten the other end of the natural gas hose to the LPG/NG inlet of the generator. Push back the quick connector collet of the natural gas hose, insert it into the generator LPG/NG inlet, loosen the quick connector sleeve, and make the sleeve clamp the propane/methane inlet. IMPORTANT: DO NOT use thread seal tape or any other type of sealant.
6. Turn the natural gas (NG) supply line valve to the fully open position ?. Check all connections for leaks by wetting the fittings with a solution of soap and water. Bubbles which appear or grow indicate a leak. If a leak exists, turn the natural gas (NG) supply line valve to the fully closed position ? and tighten the fitting. Open the natural gas (NG) supply line valve and recheck with the soap and water solution.

Connecting the Battery:

Connect the positive and negative electrodes of the battery. A quick-connect battery plug is pre-installed on the battery. Remove the cable tie securing the plugs, align colors, then push firmly to connect them.

Note: The generator is equipped with a battery charging feature. Once the engine is running, a small current will slowly recharge the battery.

Battery Charger: Do not start the generator while charging with an external power supply. Keep batteries away from fire sources. Keep the battery in a cool and dry place, away from direct sunlight. Keep batteries away from children.

1. Charge properly: Keeping battery properly charged and discharged can prolong battery life. Maintaining a power level of 10%-90% in battery is beneficial for battery protection.
2. Choose the appropriate charging temperature: Battery charging temperature range: 32-113°F (0-45°C).
3. Avoid overcharging: Overcharging of battery must be avoided during the charging process. Overcharging of battery in any form will lead to serious damage to battery performance and even explosion.

HOME POWER BACKUP READY

50 AMP OUTLET CORD SOLD SEPARATELY

Operation

Generator Location:

• NEVER operate the generator inside any building, garage, basement, crawlspace, shed, or enclosure, including the generator compartment of a recreational vehicle.
• NEVER operate or start the generator in the back of an SUV, camper, trailer, truck bed (regular sides, flat or other configuration), under staircases, stairwells, next to walls or buildings, or any other location that could limit airflow or trap exhaust.
• DO NOT operate or store the generator in wet weather conditions such as rain or snow. Using a generator in wet conditions could result in serious injury or death due to electrocution.
• Generators must have a minimum of 5 feet (1.5 m) of clearance from all combustible material.
• Generators must also have a minimum of 5 feet (1.5 m) of airflow clearance on all sides to allow for adequate cooling, maintenance, and service.
• Always place the generator in a well-ventilated area. NEVER place the generator near air intake vents or where exhaust fumes could be drawn into occupied or confined spaces.
• Always carefully consider wind and air currents when positioning the generator.
• Always allow generators to properly cool before transport or for storage purposes.
• Failure to follow proper safety precautions may result in personal injury, damage to the generator, and void your warranty.

During operation, the muffler and exhaust fumes will become hot. If there is inadequate cooling space or if the generator is blocked or enclosed, temperatures can rise quickly and may lead to a fire.

Starting the Generator:

1. Make sure the generator is on a solid, flat, level surface.
2. Disconnect all electrical loads from the generator. Never start or stop the generator with electrical devices plugged in or turned on.
3. Turn the Fuel Switch to desired fuel source:
   • To switch to gasoline: Add gasoline. Turn off the flow of natural or propane gas. Turn the Fuel Source Switch to the Gasoline position.
   • To switch to propane: Open the cylinder valve on the LPG cylinder to start the flow of propane. Turn off the flow of natural gas and gasoline. Turn the Fuel Source Switch to the Propane(LPG) position.
   • To switch to natural gas: Open the valve on the natural gas supply line to start the flow of natural gas. Turn off the flow of propane and gasoline. Turn the Fuel Source Switch to the Natural Gas(NG) position.
4. Check whether the AUTO GEN START Switch is in the "OFF" position. If this switch is in the ON position, the start button and remote start/stop button will be disabled.
5. Press the LOW IDLE Switch to "OFF".
6. Press the Main Switch to "ON" ?.
7. Choose the Starting Method:
   • a. Recoil Start: Firmly grasp and pull the recoil handle slowly until you feel resistance, let it retract then pull swiftly.
   • b. Push Button Start: Press the start button for 1-3 seconds, then release, to start the generator.
   • c. Remote Start: Push and hold the ON button on the remote start key fob for one second.

NOTE: If the generator is not successfully started using buttons/electric start and remote start, the battery of the generator may need to be charged. Use recoil to start the generator. The battery of the generator will be charged during the operation of the unit. Or use a power adapter to connect to the battery charging port on the panel to charge the battery.

8. Place the Circuit Breaker Switch in the "ON" position.
9. After 1-2 minutes of normal operation of the generator, connect the required equipment.

? Fire and explosion hazard: Always turn the propane (or methane) tank valve to the fully closed position ? if not running the generator on propane (or methane). When using the generator with propane (or methane), make sure there is no possible ignition source close to the generator. Gasoline to LPG/NG IMPORTANT: Load capacity is reduced when running on LPG/NG. Make sure the generator can supply enough (running) and surge (starting) watts for the items you are powering before switching to LPG/NG.

Switching Fuel Sources:

• Gasoline to LPG/NG: 1. Turn the LPG tank valve (natural gas supply line valve) to the fully open position ?. 2. Turn the fuel selector switch to LPG/NG operation.
• LPG/NG to Gasoline: 1. Turn the fuel selector switch to gasoline operation. 2. Turn the LPG tank valve (natural gas supply line valve) to the fully closed position ?.

NOTE: When switching to another fuel operation, the engine may run violently for a few seconds. If the engine stops when switching fuel sources, disconnect all loads then restart the unit on the fuel source of choice.

Low Temperature Environment (Cold Weather Start from -5°C to -20°C):

1. Press the Priming Pump three times before starting the engine, this causes some fuel to enter the combustion chamber and aid with starting the generator.
2. Start the generator by following the steps shown in the user manual.

Common Problems with Starting the Generator:

• Start the generator to run normally without output?
  1. Check whether the green light of the GFCI socket is on. If the green light is not on, press the RESET button after the generator is started to make the green light on. Tip: When the generator is not started, the GFCI socket is in the protected state and the "RESET" button cannot be pressed.
  2. Check whether the circuit breaker switch is set to "ON".
  3. If the circuit breaker switch is set to ON and there is no output, press the heat protection corresponding to the socket and use a multimeter to test whether the socket has voltage.
• LPG/NG start up is difficult?
  1. When both gasoline and LPG/NG are present in the generator it is recommended to start the generator on gasoline first, allow the engine to stabilize then switch to LPG (or NG).
  2. Ensure the LPG (or NG) supply hose is securely attached and Close the LPG (or NG) valve completely ?.
  3. Set Fuel source rocker switch to "GASOLINE".
  4. Follow the startup steps to start the generator.
  5. Open the LPG (or NG) valve completely ?.
  6. Set Fuel source switch to "LPG (or NG)".
• Electric start and remote start no response?
  1. Check whether the positive and negative electrodes of the battery are correctly connected.
  2. Check whether the battery is charged.
  3. Check whether the remote control is powered on.

Remote Control Pairing:

1. Long press the start button for more than 5 seconds until the button red indicator is on.
2. Press any key on the remote control.
3. The red indicator of the start button will blink two or three times and then turn off; Remote start pairing is successful.

Tip: The remote control delivered with the generator has been paired successfully.

Remote Control Key Dormancy: When generator stops running for 5 days (120 hours), while the main switch is not turned off, the remote control key cannot be used to start the generator again. At this time, you need to turn off the main switch and turn it on again, or press the one-key start button (or hand start) to start the generator, and the remote control key will be reactivated.

Parallel Operation:

The parallel connection ports allow you to connect two generators to increase the total available electrical power. Follow the instructions included with your parallel connection kit for proper installation and operation.

Overload Indicator:

Note: The OVERLOAD light may turn on for a few seconds as a large device starts. This is normal for loads approaching the capacity of this generator.

1. The total combined load through the outlets on the generator must not exceed the running power of the unit.
2. If the OVERLOAD light turns on and the generator stops producing power, it has been overloaded.
3. Turn off and disconnect all electrical devices and stop the engine. Compare device requirements to generator rating and reduce the total wattage of connected devices if necessary. Move anything that may be limiting generator ventilation away.
4. Check if any circuit breakers have tripped and make sure that ALL circuit breakers are reset before starting the generator again.
5. Restart the engine and reconnect devices while being careful to not overload the generator.

Low Oil Indicator:

1. If the engine oil level is too low, the LOW OIL light turns on and the engine will automatically shut off.
2. The engine cannot be restarted until the proper amount of oil has been added. Add the appropriate type of oil until the oil level is at the proper level. SAE 10w-30 oil is recommended for general use.

Do not run the engine with too little oil. Engine will shut off if engine oil level is too low.

Low Idle:

• Turn on a low idle mode to limit noise and fuel consumption with a light generator load.
• Turn off the low idle mode to run the engine at full speed under the following conditions:
  • Starting the generator.
  • If the load exceeds 50%, it is recommended to turn off the low idle mode.

Voltage Selector:

The Voltage Selector allows more current to be available at 120V outlets if 240V output is not required:

• Switch to 120V only: 120V sockets and 120V/240V dual voltage sockets can be used, but 120V/240V dual voltage sockets can only output 120V.
• Switch to 120V/240V: Both 120V and 240V outlets can be used.

NOTE: Do not change the switch while under load. For parallel function, switch position must be at 120/240V.

Shutting Down the Generator:

1. Turn off and unplug all connected electrical loads. Never start or stop the generator with electrical devices plugged in or turned on.
2. Select the Stopping Mode:
   • a. Button Stop: Press the button to turn off the generator.
   • b. Remote Stop: Press the "OFF" button on the remote control for 1-3 seconds.
3. Press the Main Switch to "OFF" ?. Tip: If you do not use the generator for more than 7 days (168 hours), please press the main switch to the "OFF" position, which can prevent the battery from running out.
4. Turn the Fuel Source Switch to the "OFF" position.
5. Stop the flow of fuel:
   • For propane, close the cylinder valve on the LPG cylinder ?.
   • For natural gas, close the valve on the natural gas supply line ?.
6. After the generator has completely cooled down, remove propane (or methane) hose if applicable and store the generator in a cool, dry, sheltered area.
7. Remove or consume all untreated gasoline if you plan to store the generator longer than 3 months.

IMPORTANT NOTES: The above instructions for starting and stopping the generator are normal procedures. Users must follow standard procedures to start, use and shut down the generator. 1. If the user directly turns off the generator with the main switch, there may be a sound of muffler blasting, which is a normal phenomenon under abnormal operation. 2. When the battery is not connected or the battery is out of charge, if the user directly turns off the generator with the main switch, it may be difficult or impossible to start the cold machine, which is a normal phenomenon under abnormal operation.

Using the Generator

Service Environment of the Generator:

• Applicable temperature: -5°C (23°F) to 40°C (104°F)
• Applicable humidity: below 95%
• Applicable altitude: regions below 1,500 m (Power reduction required above 1,000 m).

Standard atmospheric condition: Ambient temperature 25°C (77°F), Relative air humidity 30%, Absolute atmospheric pressure 100kPa.

When actual environmental conditions differ from standard conditions, power output may be affected:

• Every 5°C increase in ambient temperature reduces power by about 2%.
• Every 30% increase in relative humidity reduces power by about 1.5%.
• Every 300 m rise in altitude reduces power by about 4.5%.

Generator Wiring:

• When connecting the generator to household power as a backup, a professional electrician or a person familiar with electricity must perform the connection.
• After connecting the load, check electrical connections for safety and reliability. Improper connections can cause generator damage, burning, or fire.
• Avoid connecting this generator to commercial power outlets.
• When extending cables, do not exceed recommended lengths:
  • 60m: cross-section area 1.5mm²
  • 100m: cross-section area 2.5mm²
• The appearance of extension cables shall be protected by a layer of tough and elastic rubber cover (IEC25) or other substitutes.

Connection of AC power:

All electrical equipment shall be disconnected before inserting the plug. Make sure that all electrical equipment, including wires and plugs, are in good condition. Ensure all loads driven by the generator are within the rated load range and load current is within the rated current range of the socket.

Tip: Make sure the generator set is grounded, and if electrical equipment requires grounding, the generator set must be grounded.

Procedure: Start up the engine; Turn energy-saving switch to "ON"; Insert the plug into AC outlet; Make sure that AC indicator is lit up; Switch on electrical equipment.

Tip: Before increasing engine speed, the energy-saving switch must be switched to "OFF". If the generator set supplies power to multiple loads or electrical equipment, start from large to small according to the size of each electrical equipment.

Generator Grounding:

To prevent damage from electric shock or improper electrical application, it is recommended that the generator is grounded with a good conductor with insulating sheath.

• Please use a grounding wire with sufficient electrical energy capacity.
• Connect one end of the grounding wire reliably to the grounding bolt on the control panel of the generator set.
• Insert a grounding body (iron rod with a diameter of 5 ~ 10mm) 200mm below into the earth and lead it out with a conductor.
• Connect the other end of the grounding wire reliably to the led wire of the grounding body.

Tip: How to change the grounding method please refer to the website: https://www.genmaxpower.com/page/faq

Changing the Neutral Point:

This generator is in a "neutral floating" state. If you want to change to a "neutral bonded" state, insert the Bonding Plug into the output socket of the generator to change the neutral floating to neutral bonded status.

NEMA L14-30P Bonding Plug

Battery Charging:

The battery storage time is generally about 6 months. If the generator is not used for a long time, the battery will run out of power. At this time, the battery should be charged. Replace the battery if it is damaged or fails to charge.

• Hand start charging: Start the generator by hand, and the battery will be charged automatically when the generator runs.
• Use an external power source for charging: Connect the battery charger to the battery charging port on the generator panel and connect the mains to charge the battery.

Do not start the generator while charging with an external power supply. Keep batteries away from fire sources. Keep the battery in a cool and dry place, away from direct sunlight. Keep batteries away from children.

1. Charge properly: Keeping battery properly charged and discharged can prolong battery life. Maintaining a power level of 10%-90% in battery is beneficial for battery protection.
2. Choose the appropriate charging temperature: Battery charging temperature range: 32-113°F (0-45°C).
3. Avoid overcharging: Overcharging of battery must be avoided during the charging process. Overcharging of battery in any form will lead to serious damage to battery performance and even explosion.

Connecting Automatic Start/Stop Devices:

This generator can be controlled to start and stop through an external intelligent control system. When using other external intelligent control systems to control the generator, please carefully read the manual provided with the equipment.

• AUTO GEN START:
  1. Select the fuel source according to the startup steps, connect the battery cable, and press the main switch to the "ON" position.
  2. Turn the AUTO GEN START SWITCH to ON. (One-key start, and remote control cannot control the start of the generator. Only the AUTO GEN START can control the generator.)
  3. When the AUTO GEN START is connected, the external intelligent control system controls the start and stop of the generator (it will start and run if the two wires are Short-circuited, and shut down if they are disconnected).
• AUTO GEN STOP:
  • Turn the AUTO GEN START SWITCH to OFF. (One-key start, the remote control can control the start of the generator, AUTO GEN START cannot control the generator.)
  • After this function is enabled, the push start button and remote start start/stop button and remote start are disabled.
  • Before connecting GM1600WH or other automatic start/stop equipment, please carefully read the accompanying manual.

Service and Maintenance

Good maintenance and service is the best guarantee for safe, economical and zero-failure operation. It also contributes to environmental protection. In order to keep the generator in good condition, you must inspect and maintain it regularly. The maintenance schedule is as follows:

Maintenance Schedule:

* These items shall be replaced if necessary; ** These items shall be maintained by the dealer authorized by the Company, unless the user has proper tools and maintenance ability.
• If it often works under high temperature or high load, oil shall be changed every 25 hours.
• If it often works in dusty or harsh environment, air cleaner element shall be cleaned every 10 hours. If necessary, the air cleaner element shall be replaced every 25 hours.
• It shall be maintained on spot-inspection cycle and time, whichever is earlier.
• If maintenance cycle time has elapsed, perform the maintenance as soon as possible as per the table above.

Please shut down the engine first before performing any maintenance. The engine shall be placed in a horizontal position. In order to prevent the engine from starting up, separate spark plug cap shall be separated from spark plug. Do not use it indoors or use it in a tunnel, cave or other places ventilated poorly. Make sure that work area is well ventilated. Exhaust gas from the engine contains toxic gases, carbon oxides, and the inhalation can cause shock, loss of consciousness, and even death.

Checking and Filling Fuel:

? TO PREVENT SERIOUS INJURY FROM FIRE: Fill the fuel tank in a well-ventilated area away from ignition sources. If the engine is hot from use, shut the engine off and wait for it to cool before adding fuel. Do not smoke.

1. Clean the Fuel Cap and the area around it.
2. Unscrew and remove the Fuel Cap.
3. Remove the strainer and remove any dirt and debris. Then replace the strainer.

Note: Do not use gasoline containing more than 10% ethanol (E10). Do not use E85 ethanol.
Note: Do not use gasoline that has been stored in a metal fuel container or a dirty fuel container. It can cause particles to enter the carburetor, affecting engine performance and/or causing damage.

4. If needed, fill the Fuel Tank to about 1.5 inches (3.8 cm) under the fill neck with 87 octane unleaded gasoline that has been treated with a fuel stabilizer additive. Follow fuel stabilizer manufacturer's recommendations for use.
5. Replace the Fuel Cap.
6. Wipe up any spilled fuel and allow excess to evaporate before starting the engine. To prevent FIRE, do not start the engine while the smell of fuel hangs in the air.

Cleaning the Generator:

Do not store or operate your generator in dirty, dusty, or corrosive environments. Do not allow foreign materials and debris to clog the vents on the unit. NEVER clean the generator with a garden hose. Water can damage the generator's fuel system and electrical components. If the unit needs to be cleaned, use a soft brush and damp cloth to clean the exterior and use low pressure air (no greater than 25 psi) to clean the vents. Never use gasoline as a cleaning agent.

Spark Plug Inspection:

The spark plug is important for proper engine operation. A good spark plug should be intact, free of deposits, and properly gapped. Improper maintenance may cause reduced fuel economy, misfires, trouble starting, or damage to the spark plug threads.

Turn off the generator and wait for the generator to completely cool down.

1. Pull out the spark plug cap.
2. Unscrew the spark plug from the generator using the spark plug wrench included with this product.
3. Inspect the Spark Plug. If the electrode is oily, clean it using a clean, dry rag. If the electrode has deposits on it, clean it with a brass wire brush. If the white insulator is cracked or chipped, replace the spark plug.
4. Check the model of spark plug and clearance. Spark plug gap: 0.7-0.8mm.
5. Reinstall the spark plug. Spark plug torque: 22.5±2.5N.m (199±22in-lb).

Tip: If there is no torque wrench when installing the spark plug, a better estimation method is to screw it 1/4-1/2 turns by force after screwing it in place, but the spark plug shall be screwed to specified torque as soon as possible.

6. Replace Spark Plug Cap.

Engine Oil Change:

Do not drain the oil immediately after turning off the generator. Oil temperature is very high; when operating, take care to avoid scalding. Warm engine oil drains more quickly and thoroughly than cool lubricant. Contact with hot lubricant will cause serious burns.

1. The oil dipstick is on the left side of the generator. Drain engine oil. Place an oil pan (or suitable container) under the oil drain bolt, remove the oil drain bolt and allow the oil to drain. Drain oil into an approved oil disposal container. Contact your local auto parts store for information on oil disposal.
2. After the oil has drained completely, replace the oil drain bolt. Follow the procedure of "Adding Engine Oil" to add new engine oil and check the oil level.
3. Clean up any spilled oil.

Cleaning/Replacing the Air Filter:

Dirty air cleaner may prevent air from flowing into the carburetor. In order to prevent failure of the carburetor, please maintain air cleaner regularly. If being used in a dusty environment, it shall be maintained frequently.

1. Turn off the generator and let the engine cool down.
2. Remove screws to remove the cover plate of the air cleaner.
3. Remove the air filter element.
4. Clean the components with cleaning agent. After cleaning, wrap the components in a cloth and screw them dry.

NOTE: If the air filter element is damaged, replace it with a new one.

4. Drip a few drops of oil to foam filter element and squeeze off excess oil. The foam cleaner element shall be wet, but there shall not be oil dripping.

NOTE: Be sure not to twist the foam cleaner element forcibly to avoid damage.

5. Return the air filter element to its original position. Reinstall the air filter cover.

NOTE: Make sure that the surface of foam cleaner element is in close contact with air cleaner, and there shall be no gap leaking air. Be sure not to start the engine before air cleaner is assembled, because it will generate excessive toxic gas and wear the cylinder.

Clean the Fuel Filter:

Be sure not to open fuel tank of the generator in a place where smoking or with flame.

1. Remove fuel tank cap and fuel tank filter screen.
2. Clean fuel tank filter screen with gasoline.
3. Wipe filter screen dry, and put it back into fuel tank.
4. Reassemble fuel tank cap.

Storage and Transport

Generator Storage:

If it is stored long-term, in order to prevent aging, you shall take some storage measures.

1. Turn off the generator and let it cool completely.
2. Open fuel tank cap, to take out fuel filter screen. Pump all fuel in fuel tank into a special fuel tank, and then reassemble fuel tank cap back.
3. Start up the engine to burn off fuel in the carburetor, and then shut it down.

NOTE: Do not connect any electrical equipment. Running time of the engine depends on remaining fuel in the fuel tank.

4. Unscrew fuel drain bolt on the carburetor, and drain fuel in the carburetor into a special fuel tank. Tighten fuel drain bolt.
5. Unscrew oil dipstick, and drain oil in the crankcase off. Fill new oil to the upper oil limit, and then assemble oil dipstick.
6. Remove the spark plug and pour 5-10ml of clean oil into the combustion chamber. Turn the crankshaft a few times to distribute the oil, then reassemble the spark plug.
7. Disconnect the battery cable.
8. Gently pull startup handle until you feel resistance, allowing both inlet valve and exhaust valve to be closed.
9. Clean the generator.

NOTE: Please do not rinse the generator with water. There is a possibility of causing malfunctions and short circuits in electrical components.

10. Place the generator set in a clean and dry area.

Placing the Generator: After the generator cools down, place it upright and cover it with a layer of dust cloth. The generator should be placed in a well ventilated and dry place. Do not pile up debris on the generator.

Generator Transport:

• When the generator set is transported, it shall be ensured that there is no fuel spilling.
• Do not fill excessive fuel into fuel tank.
• Do not run the generator, and avoid direct sunlight.
• Do not transport the generator set on rough road for long time.

Preparation for Use After Storage:

1. Slowly pull the starter cord a few times to clean oil from the cylinder or to eject any pump protector from the pump which may have been added prior to storage.
2. Remove the spark plug from the cylinder. Wipe oil from the spark plug and return it to the cylinder and retighten.
3. Reconnect the spark plug wire.
4. Refuel engine per earlier instructions in this manual.

Troubleshooting

Refer to the troubleshooting table for common issues and solutions.

Technical Parameters

Choosing a Generator

This section visually guides the user on selecting the appropriate generator. It depicts a process or comparison, likely illustrating factors to consider such as power needs, fuel types, and generator features to help users make an informed decision.