LG Dryer Installation Guide

This guide provides comprehensive instructions for the installation of LG dryers, ensuring safe and efficient operation. Please read all instructions carefully before proceeding.

Installation Overview

Follow these steps for a successful installation:

  1. Check and choose the proper location.
  2. Level the dryer.
  3. Vent the dryer.
  4. Connect the inlet hose (for steam models).
  5. Connect the Gas dryer or Electric dryer.
  6. Plug in the power cord.
  7. Perform an installation test and a test run.

Product Specifications

The appearance and specifications may vary due to product improvements.

Dryer ModelsDLE3500*/DLG3501*DLEX3700* / DLGX3701*DLEX3900* / DLGX3901*
DescriptionNon-steam DryerSteam DryerSteam Dryer
Electrical requirementsPlease refer to the rating label for detailed information.
Gas requirementsNG: 4 - 10.5-inch (10.2 - 26.7 cm) WC
LP: 8 - 13-inch (20.4 - 33.1 cm) WC
Dimensions27" (W) X 30.2” (D) X 39" (H), 51.4” (D with door open)
68.6 cm (W) X 76.5 cm (D) X 99 cm (H), 130.5 cm (D with door open)
Net weightGas: 123.02 lb (55.8kg) - 126.77 lb (57.5kg)
Electric: 120.15 lb (54.5kg) - 123.46 lb (56kg)
Drying capacitySteam Cycle: IEC 7.4 cu.ft. (8 lb/3.6 kg)
Normal Cycle: IEC 7.4 cu.ft. (22.5 lb/10.2 kg)
-

NOTE: Model numbers can be found on the cabinet inside the door.

Installation Location Requirements

WARNING: Read all installation instructions completely before installing and operating your dryer. It is important that you review this entire manual before installing and using your dryer. Detailed instructions concerning electrical connections, gas connections, and exhaust requirements are provided on the following pages.

The installation requires:

NOTE:

Clearances

The following clearances are recommended for this dryer. This dryer has been tested for clearances of 1 inch (2.5 cm) on the sides and rear. Recommended clearances should be considered for the following reasons:

Closet Installation Clearances

For closet installation, with a door, minimum ventilation openings in the top and bottom of the door are required. Louvered doors with equivalent ventilation openings are acceptable.

Closet Ventilation Requirements

Closets with doors must have both an upper and lower vent to prevent heat and moisture buildup. One upper vent opening with a minimum opening of 48 sq. in. (310 cm²) must be installed no lower than 6 feet above the floor. One lower vent opening with a minimum opening of 24 sq. in. (155 cm²) must be installed no more than one foot above the floor. Install vent grills in the door or cut down the door at the top and bottom to form openings.

NOTE: There should be at least a little space around the dryer (or any other appliance) to eliminate the transfer of vibration. If there is enough vibration, it could cause appliances to make noise or come into contact, causing paint damage and further increasing noise.

Installation Spacing for Recessed Area or Closet, with Stacked Washer and Dryer

Diagrams showing required spacing for stacked units.

Installation Spacing for Cabinet

For cabinet installation with a door, minimum ventilation openings in the top of the cabinet are required.

Leveling the Dryer

WARNING: To reduce the risk of serious injury or death, follow basic precautions, including using long-sleeved gloves and safety glasses. The appliance is heavy; two or more people are required when installing the dryer.

NOTE: Adjust the leveling feet only as far as necessary to level the dryer. Extending the leveling feet more than necessary may cause the dryer to vibrate. To ensure optimal drying performance, the dryer must be level. The floor must be a perfectly level, solid surface to minimize vibration, noise, and unwanted movement.

  1. Position the dryer in the final location. Place a level across the top of the dryer.
  2. Use an adjustable wrench to turn the leveling feet. Unscrew the legs to raise the dryer or screw in the legs to lower it. Raise or lower with the leveling feet until the dryer is level from side to side and front to back. Make sure that all four leveling feet are in firm contact with the floor.

NOTE: If installing on an optional pedestal, use the leveling feet on the pedestal to level the dryer. The dryer leveling feet should be fully retracted.

Reversing the Door

Tools Required: Phillips screwdriver, Large flat blade screwdriver, Small flat blade screwdriver.

WARNING: To reduce the risk of damage to the dryer, property damage, or personal injury, support the door with a stool or box, or have an assistant support the weight of the door. Avoid dropping the door. Unplug the dryer or turn off power at the main circuit breaker before beginning door reversal. Always reverse the door BEFORE stacking the dryer on top of the washer.

Door Reversal Instructions:

  1. Open the door and remove the two decorative screws, two latch screws, and the latch on the catch side with a screwdriver.
  2. While supporting the door, remove the 2 screws on the door hinge. Remove the door.
  3. Turn the door upside down and line up the holes in the hinge with the holes on the opposite side of the cabinet. Reinstall the door with the screws removed in step 2.
  4. WARNING: Be sure to support the weight of the door before installing the hinge screws. Install the two decorative screws, the latch, and two latch screws removed in step 1 on the opposite side from which they were removed.
  5. Check that the door closes properly.

Installing the Side Vent Kit

WARNING: To reduce the risk of serious injury, death, or property damage, follow basic precautions, including using long-sleeved gloves and safety glasses. Use a heavy metal vent. Do not use plastic or thin foil ducts. Clean old ducts before installing this dryer.

Your new dryer is configured to vent to the rear. It can also vent to the bottom or side (right-side venting is not available on gas models).

An adapter kit, part number 383EEL9001B, may be purchased from your LG retailer. This kit contains duct components necessary to change the dryer vent location.

Option 1: Side Venting

  1. Remove the rear exhaust duct retaining screw. Pull out the exhaust duct.
  2. Press the tabs on the knockout and carefully remove the knockout for the desired vent opening (right-side venting is not available on gas models). Press the adapter duct onto the blower housing and secure to the base of the dryer as shown.
  3. Preassemble a 4-inch (10.2 cm) elbow to the next 4-inch (10.2 cm) duct section, and secure all joints with duct tape. Be sure that the male end of the elbow faces AWAY from the dryer. Insert the elbow/duct assembly through the side opening and press it onto the adapter duct. Secure it in place with duct tape. Be sure that the male end of the duct protrudes 1.5 inches (3.8 cm) to connect the remaining ductwork. Attach the cover plate to the back of the dryer with the included screw.

Option 2: Bottom Venting

  1. Press the adapter duct onto the blower housing and secure it to the base of the dryer as shown.
  2. Insert the 4-inch (10.2 cm) elbow through the rear opening and press it onto the adapter duct. Be sure that the male end of the elbow faces down through the hole in the bottom of the dryer. Secure it in place with duct tape. Attach the cover plate to the back of the dryer with the included screw.

Stacking the Dryer

Stacking Kit Installation

This stacking kit includes: Two (2) side rails, One (1) front rail, Four (4) screws.

Tools Needed for Installation: Phillips screwdriver.

WARNING: To reduce the risk of electrical shock, fire, explosion, property damage, serious injury, or death, follow basic precautions. The weight of the dryer and the height of installation make this stacking procedure too risky for one person; two or more people are required. Do not use the stacking kit with a gas dryer in potentially unstable conditions. Place the washer on a solid, stable, level floor. Do not stack the washer on top of the dryer. If appliances are already installed, disconnect them from all power, water, or gas lines and from draining or venting connections.

  1. Make sure the surface of the washer is clean and dry. Remove paper backing from the tape on one of the stacking kit side brackets.
  2. Fit the side bracket to the side of the washer top. Firmly press the adhesive area of the bracket to the washer surface. Secure the side bracket to the washer with a screw on the back side of the bracket. Repeat steps 1 and 2 to attach the other side bracket.
  3. Place the dryer on top of the washer, fitting the dryer feet into the side brackets. Avoid finger injuries; do not allow fingers to be pinched between the washer and dryer. Slowly slide the dryer toward the back of the washer until the side bracket stoppers catch the dryer feet.
  4. Insert the front rail between the bottom of the dryer and the top of the washer. Push the front rail toward the back of the washer until it comes in contact with the side rail stoppers. Install the two remaining screws to secure the front rail to the side rails.

Venting the Dryer

WARNING: To reduce the risk of fire or explosion, electric shock, property damage, injury to persons, or death, follow basic safety precautions. Do not crush or collapse ductwork. Do not allow ductwork to rest on or contact sharp objects. Ensure existing ductwork is suitable and clean before installing the dryer. Venting must conform to local building codes. Gas dryers MUST exhaust to the outdoors. Use only 4-inch (10.2 cm) rigid, semi-rigid, or flexible metal ductwork inside the dryer cabinet and for venting outside. Do not exhaust dryer air into an enclosed and unventilated area. Do not exhaust the dryer with plastic or thin foil ducting. The exhaust duct must be 4-inch (10.2 cm) in diameter with no obstructions. The exhaust duct should be kept as short as possible. Clean any old ducts before installing your new dryer. Rigid, semi-rigid, or flexible metal ducting is recommended. All non-rigid metal transition duct must be UL-listed. Use of other materials for transition duct could affect drying time. Do not use sheet metal screws or other fasteners which extend into the duct. Secure all joints with duct tape. Do not exceed the recommended duct length limitations.

WARNING: Ductwork is not provided with the dryer. Obtain necessary ductwork locally. The vent hood should have hinged dampers to prevent backdraft. The total length of flexible metal duct must not exceed 8 ft. (2.4 m).

Ductwork

Table showing recommended ductwork lengths based on the number of 90° elbows.

Routing and Connecting Ductwork

NOTE: Follow the guidelines below to maximize drying performance and reduce lint buildup and condensation in the ductwork. Ductwork and fittings are NOT included and must be purchased separately.

Correct Venting

Diagram showing correct dryer venting.

Incorrect Venting

Diagram showing incorrect dryer venting.

Connecting the Inlet Hose (Steam Models)

The dryer must be connected to the cold water tap using the new water supply hose. Do not reuse old hoses.

NOTE: Water supply pressure must be between 20 and 120 psi (138—827 kPa). Do not strip or cross-thread when connecting the inlet hose to the valve. If water supply pressure is more than 800 kPa, a pressure-reducing valve should be installed. Periodically check the condition of the hose and replace if necessary. Replace inlet hoses after 5 years of use. Record hose installation or replacement dates.

  1. Check the rubber seal at each end of the inlet hoses. Two rubber seals are supplied with each inlet hose. Make sure the connection to the cold water tap is tight.
  2. Check the installation type (WITH WASHER or WITHOUT WASHER).
  3. Connect the hose to the dryer. Connect the water supply hose to the dryer inlet valve tightly by hand and then tighten another 2/3 turn with pliers. Make sure that there are no kinks in the hoses and that they are not crushed.
  4. Turn on the cold water faucet.
  5. Check for leaks at the Y-connector (if used) and in all hoses.

NOTE: Before connecting the water line to the dryer, flush several gallons of water into a drain or bucket. This will help prevent foreign particles from clogging the dryer inlet valve. Do not overtighten. Damage to the coupling may result.

Connecting Gas Dryers

WARNING: To reduce the risk of fire or explosion, electric shock, property damage, injury to persons, or death, follow requirements including electrical and gas supply requirements.

Electrical Requirements for Gas Models Only

ELECTRIC SHOCK HAZARD

Failure to follow safety warnings could result in serious injury. This dryer is equipped with a three-prong grounding plug and should be plugged directly into a properly grounded three-prong receptacle.

Gas Supply Requirements

Gas Supply Requirements (continued)

Connecting the Gas Supply

NOTE: In the Commonwealth of Massachusetts: This product must be installed by a licensed plumber or gas fitter. T-handle-type shut off valves are required. Flexible gas connectors must not exceed 3 feet.

NOTE: DO NOT use old connectors.

  1. Make sure that the gas supply to the laundry room is turned OFF and the dryer is unplugged. Confirm that the type of gas available in your laundry room is appropriate for the dryer.
  2. Remove the shipping cap from the gas fitting at the back of the dryer. Be careful not to damage the threads of the gas connector when removing the shipping cap.
  3. Connect the dryer to your laundry room's gas supply using a new flexible stainless steel connector with a 3/8-inch NPT fitting.
  4. Securely tighten all connections between the dryer and your laundry room's gas supply.
  5. Turn on your laundry room's gas supply.
  6. Check all pipe connections (both internal and external) for gas leaks with a noncorrosive leak-detection fluid.
  7. Proceed to Venting the Dryer.

High-Altitude Installations

The BTU rating of this dryer is AGA-certified for elevations below 10,000 feet. If your gas dryer is being installed at an elevation above 10,000 feet, it must be derated by a qualified technician or gas supplier.

Connecting Electric Dryers

WARNING: To reduce the risk of fire or explosion, electric shock, property damage, injury to persons, or death, follow requirements including electrical requirements.

Electrical Requirements for Electric Models Only

WARNING:

NOTE: For electrical requirements for mobile or manufactured homes, see Special Electrical Requirements.

Four-Wire Power Cord

  1. Remove the terminal block access cover on the upper back of the dryer.
  2. Install a UL-listed strain relief into the power cord through-hole.
  3. Thread a 30-amp, 240-volt, 4-wire, UL-listed power cord with #10 AWG-minimum copper conductor through the strain relief.
  4. Transfer the dryer's ground wire from behind the green ground screw to the center screw of the terminal block.
  5. Attach the two hot leads of the power cord to the outer terminal block screws.
  6. Attach the white neutral wire to the center screw of the terminal block.
  7. Attach the power cord ground wire to the green ground screw.
  8. Tighten all screws securely.
  9. Reinstall the terminal block access cover.

Four-Wire Direct Wire

  1. Remove 5-inch (12.7 cm) of the outer covering from the wire. Remove 5-inch of insulation from the ground wire. Cut off approximately 1.5-inch (3.8 cm) from the other three wires and strip 1 inch (2.5 cm) insulation from each wire. Bend the ends of the three shorter wires into a hook shape.
  2. Remove the terminal block access cover on the upper back of the dryer.
  3. Install a UL-listed strain relief into the power cord through-hole.
  4. Thread the 4-wire #10 AWG-minimum copper power cable prepared in step 1 through the strain relief.
  5. Transfer the dryer's ground wire from behind the green ground screw to the center screw of the terminal block.
  6. Attach the two hot leads of the power cord to the outer terminal block screws.
  7. Attach the white neutral wire to the center screw of the terminal block.
  8. Attach the power cord ground wire to the green ground screw.
  9. Tighten all screws securely.
  10. Reinstall the terminal block access cover.

Three-Wire Power Cord

  1. Remove the terminal block access cover on the upper back of the dryer.
  2. Install a UL-listed strain relief into the power cord through-hole.
  3. Thread a 30-amp, 240-volt, 3-wire, UL-listed power cord with #10 AWG-minimum copper conductor through the strain relief.
  4. Attach the two hot leads (black and red) of the power cord to the outer terminal block screws.
  5. Attach the neutral (white) wire to the center terminal block screw.
  6. Connect the external ground (if required by local codes) to the green ground screw.
  7. Tighten all screws securely.
  8. Reinstall the terminal block access cover.

Three-Wire Direct Wire

  1. Remove 3.5-inch (8.9 cm) of the outer covering from the wire. Strip 1 inch (2.5 cm) insulation from each wire. Bend the ends of the three wires into a hook shape.
  2. Remove the terminal block access cover on the upper back of the dryer.
  3. Install a UL-listed strain relief into the power cord through-hole.
  4. Thread the 3-wire, #10 AWG-minimum copper conductor power cable prepared in step 1 through the strain relief.
  5. Attach the two hot leads (black and red) of the power cord to the outer terminal block screws.
  6. Attach the neutral (white) wire to the center terminal block screw.
  7. Connect the external ground (if required by local codes) to the green ground screw.
  8. Tighten all screws securely.
  9. Reinstall the terminal block access cover.

Special Electrical Requirements (For Mobile or Manufactured Homes)

Final Installation Check

Once you have completed the installation of the dryer and it is in its final location, confirm proper operation with the following tests and Installation Test (Duct Check).

Testing Dryer Heating

GAS MODELS: Close the dryer door and press the Power button to turn the dryer on. Press the Time Dry and Start/Pause buttons to start the test. When the dryer starts, the igniter should ignite the main burner.

NOTE: If all air is not purged from the gas line, the gas igniter may turn off before the main burner ignites. If this happens, the igniter will reattempt gas ignition after approximately two minutes.

ELECTRIC MODELS: Close the dryer door and press the Power button to turn the dryer on. Press the Time Dry and Start/Pause buttons to start the test. The exhaust air should be warm after the dryer has been operating for 3 minutes.

Checking Airflow

Effective dryer operation requires proper airflow. The adequacy of the airflow can be measured by evaluating the static pressure. Static pressure in the exhaust duct can be measured with a manometer, placed on the exhaust duct approximately 2 ft. (60.9 cm) from the dryer. Static pressure in the exhaust duct should not exceed 0.6 inch (1.5 cm). The dryer should be checked while the dryer is running with no load.

Checking Levelness

Once the dryer is in its final location, recheck the dryer to be sure it is level. Make sure it is level front to back and side to side, and that all four leveling feet are in firm contact with the floor.

Installation Test (Duct Check)

Once you have completed the installation of the dryer, use this test to make sure the condition of the exhaust system is adequate for proper operation of the dryer. This test should be performed to alert you to any serious problems in the exhaust system of your home.

Your dryer features Flow Sense™, an innovative sensing system that automatically detects blockages and restrictions in dryer ductwork. Keeping ductwork clean of lint buildup and free of restrictions allows clothes to dry faster and reduces energy use.

NOTE: The dryer should be cool before starting this test. If the dryer was warmed up during installation, run the Air Dry cycle for a few minutes to reduce the interior temperature.

Activating the Installation Test

  1. Remove the drying rack and literature, and then close the door. Do not load anything in the drum for this test, as it may affect the accuracy of the results.
  2. Press and hold the Signal and Temp. buttons and then press the Power button. (On models with a glass touch control panel, press the Power button then IMMEDIATELY press and hold the Temp. and Signal buttons.) This button sequence activates the installation test. The code Ins will display if the activation is successful.
  3. Press the START/PAUSE button. The dryer will start the test, which will last a few minutes. The heat will be turned on and the temperatures in the drum will be measured.
  4. Check the display for results. During the test cycle, monitor the Flow Sense™ display on the control panel. If the Flow Sense™ LED has not turned on, when the cycle ends, the exhaust system is adequate. If the exhaust system is severely restricted, the Flow Sense™ LED will turn on. Other problems may also be shown with error codes.
  5. End of cycle. At the end of the test cycle, End will display. The test cycle will end and the dryer will shut off automatically after a short delay.

Check the Duct Condition

If the Flow Sense™ LED is turned on, check the exhaust system for restrictions and damage. Repair or replace the exhaust system as needed.

NOTE: When the dryer is first installed, this test should be performed to alert you to any existing problems with the exhaust duct in your home. However, since the test performed during normal operation provides more accurate information on the condition of the exhaust duct than the installation test, the number of bars displayed during the two tests may not be the same. Do not interrupt the test cycle, as this could result in inaccurate results. Even if no bars are displayed during the test cycle, some restrictions may still be present in the exhaust system. Refer to the Venting the Dryer section of this manual for complete exhaust system and venting requirements. Your dryer features Flow Sense™, an innovative sensing system that automatically detects blockages and restrictions in dryer ductwork. Keeping ductwork clean of lint buildup and free of restrictions allows clothes to dry faster and reduces energy use.

Error Codes

Check the error code before you call for service.

Error CodePossible CausesSolutions
tE1 or tE2Temperature sensor failure.Turn off the dryer and call for service.
HSHumidity sensor failure.Turn off the dryer and call for service.
PS, PF, or nPElectric dryer power cord is not connected correctly, or house power supply is incorrect.Check the power supply or the connection of the power cord to the terminal block. Refer to the Connecting Electric Dryers section of this manual for complete instructions.
PS, PF, or nPHouse fuse is blown, circuit breaker has tripped, or power outage has occurred.Reset circuit breaker or replace fuse. Do not increase the fuse capacity. If the problem is a circuit overload, have it corrected by a qualified electrician.
gASGas supply or service turned off. (Gas Model only.)Confirm that house gas shutoff and the dryer gas shutoff are both fully open.

Restricted or Blocked Airflow

Avoid long runs or runs with multiple elbows or bends.

Diagrams illustrating excess or crushed transition duct and too many elbows or exhaust too long.

Check for blockages and lint buildup.

Diagrams illustrating lint buildup or blockage.

Make sure the ductwork is not crushed or restricted.

Diagram illustrating crushed or damaged exhaust.

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