GENMAX GM9000iED Dual Fuel Inverter Generator

Important Safety Information

Read this manual carefully before operating the generator. Failure to follow safety instructions can result in serious injury or death.

• Carbon Monoxide Hazard: Operate the generator outdoors only in a well-ventilated area, far away from windows, doors, and vents. Never operate indoors, in garages, or in enclosed spaces. Exhaust contains carbon monoxide, a colorless, odorless gas that can be fatal.
• Electrical Hazard: Do not operate in wet conditions. Ensure proper grounding. Do not touch electrical parts with wet hands.
• Fuel Hazard: Store fuel in approved containers. Refuel only when the generator is off and cool. Do not smoke while refueling.
• Fire Hazard: Keep flammable materials away from the generator.
• Noise Hazard: Wear hearing protection when operating.

Generator Specifications:

• Model: GENMAX GM9000iED
• Rated Output (Gasoline/Propane): 7600 Watts
• Peak Output (Gasoline/Propane): 9000 Watts
• Amperage: 50 Amp
• Fuel Type: Dual Fuel (Gasoline / Propane)
• Starting System: Remote Start, Electric Start, Recoil Start
• Engine Type: 4-stroke, air-cooled
• Noise Level: Varies by load and fuel type, typically around 60-65 dB at 25% load.

Product Overview

The GENMAX GM9000iED is a powerful and versatile dual-fuel inverter generator designed to provide reliable backup power for homes, RVs, and job sites. Its inverter technology produces clean, stable power suitable for sensitive electronics. The unit features remote start capability for convenient operation, a robust 50 Amp outlet, and the flexibility to run on either gasoline or propane.

Key Features:

• Dual Fuel Capability: Seamlessly switch between gasoline and propane (LPG) for fuel flexibility.
• Remote Start: Start and stop the generator from a distance using the included remote control.
• Clean Power Output: Inverter technology ensures low Total Harmonic Distortion (THD), protecting sensitive electronics like laptops and smartphones.
• High Power Output: Delivers 7600 running watts and 9000 peak watts, capable of powering multiple appliances and tools.
• 50 Amp Outlet: Provides a high-amperage connection for larger loads.
• Digital Display: Shows voltage, frequency, runtime, and total hours for easy monitoring.
• Low Oil Shutdown: Protects the engine by automatically shutting it down if the oil level is too low.
• Parallel Capability: (Optional) Two GM9000iED units can be connected in parallel for increased power output.

Operation

This section details how to safely start, operate, and shut down the generator.

Starting the Generator

Before Starting:

• Ensure the generator is on a level surface outdoors, away from any structures.
• Check the engine oil level and add if necessary.
• For Gasoline Operation: Ensure the fuel cap is tight and the fuel valve is open.
• For Propane Operation: Connect a standard propane tank using the provided regulator and hose. Ensure the propane tank valve is open and the generator's propane inlet valve is open.
• Ensure no loads are connected to the generator outlets.

Starting Procedure (Electric/Remote Start):

1. Turn the engine switch to the 'ON' position.
2. Turn the fuel selector switch to 'GASOLINE' or 'PROPANE' as desired.
3. Turn the choke lever to the 'CHOKE' position.
4. Press the 'START' button on the control panel or use the remote control. The engine will crank and start.
5. Once the engine starts and runs smoothly, gradually move the choke lever to the 'RUN' position.
6. Allow the generator to warm up for a few minutes before connecting loads.

Connecting Loads:

• Ensure the total wattage of connected devices does not exceed the generator's rated output.
• Connect devices one at a time, starting with the highest wattage items.
• The generator features overload protection. If an overload occurs, the output will shut off. Reduce the load and restart the generator.

Shutting Down the Generator:

1. Disconnect all electrical loads from the generator outlets.
2. Turn the engine switch to the 'OFF' position.
3. Turn the fuel valve to the 'OFF' position (for gasoline). Close the propane tank valve and disconnect the propane line if storing for an extended period.

Maintenance

Regular maintenance ensures the longevity and reliable performance of your generator.

Routine Checks (Before Each Use):

• Check engine oil level.
• Inspect air filter for cleanliness.
• Visually inspect the generator for any damage or leaks.

Scheduled Maintenance:

• First 20 Hours: Change engine oil. Clean or replace the air filter.
• Every 100 Hours (or annually): Change engine oil. Clean or replace the air filter. Inspect spark plug. Check valve clearance (refer to service manual for details).
• Every 200 Hours (or annually): Replace spark plug. Clean fuel filter.
• Every 500 Hours (or annually): Inspect the cylinder head and exhaust port for carbon buildup.

Oil Change:

• Warm up the engine for a few minutes.
• Turn the engine OFF and place a suitable container under the oil drain plug.
• Remove the oil drain plug and allow the oil to drain completely.
• Replace the drain plug and fill the crankcase with the recommended type and amount of engine oil (refer to specifications for oil type, e.g., SAE 10W-30).
• Start the engine and let it run for a few minutes, then check the oil level and top off if necessary.

Air Filter Maintenance:

• Remove the air filter cover.
• Remove the air filter element. If it is a foam element, wash it in warm, soapy water, rinse thoroughly, and allow it to dry completely. Lightly oil the foam element with clean engine oil and squeeze out the excess. If it is a paper element, tap it gently to remove dust or replace it if it is very dirty.
• Reinstall the air filter and cover.

Troubleshooting

Refer to the table below for common issues and their solutions.

For issues not covered in this troubleshooting guide, contact authorized service personnel.