Author: ApplianceFixGuide Team

Problem: High Ambient Temperature. The room temperature is too high for the heat pump/condenser to operate efficiently.

How to Fix Dryer Error

1. Improve ventilation in the laundry room.
2. Ensure the dryer is not installed in a closet without adequate airflow gaps.
3. Allow the room to cool down before restarting.

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Problem: Door Error 3. The door is detected as open, but the start button is being pressed.

How to Fix Dryer Error

1. Open and slam the door firmly.
2. Unplug the dryer.
3. Check the door switch alignment.
4. Check the wiring harness between the door switch and the control board.
5. Replace the door switch if continuity test fails.

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Problem: Drain Pump Failure (Washer/Dryer Combo units). The unit cannot drain water during the dry cycle.

How to Fix Dryer Error

1. Clean the drain filter (coin trap) usually located at the bottom front.
2. Check the drain hose for clogs.
3. Test the drain pump for operation.
4. Replace the drain pump if it hums but does not drain.

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Problem: Drain Timeout. The dryer (condenser type) took too long to empty the reservoir.

How to Fix Dryer Error

1. Check the drain hose installation height (must not be too high).
2. Clean the condensate drawer housing.
3. Check for obstructions in the internal tubing leading to the pump.
4. Replace drain pump.

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Problem: Heater Thermistor Circuit Open. Similar to tE1 but specific to certain hybrid firmware.

How to Fix Dryer Error

1. Unplug the dryer.
2. Access the heater assembly.
3. Test the thermistor for continuity (approx 10k Ohms).
4. Inspect the wiring harness for rodent damage or breaks.
5. Replace the thermistor.

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Problem: Heater Thermistor Circuit Short. The sensor is reading 0 Ohms.

How to Fix Dryer Error

1. Unplug the dryer.
2. Disconnect the thermistor plug.
3. If the error clears on the display (or changes to Open error), the wiring is good and the sensor is bad.
4. Replace the thermistor.

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Problem: Motor Relay Failure. The motor relay on the main board is stuck.

How to Fix Dryer Error

1. Unplug the dryer.
2. Tap the relay on the main board lightly (temporary check).
3. If the drum rotates immediately upon plugging in without pressing start, the relay is fused.
4. Replace the main control board.

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Browse all Lg error codes: Lg Error Codes

Problem: Thermistor Error. Older syntax for tE1.

How to Fix Dryer Error

1. Unplug the dryer.
2. Remove the top and front panel (or rear panel on some models) to access the blower housing.
3. Locate the thermistor (small white sensor with 2 wires).
4. Measure resistance with a multimeter; at room temperature (70°F), it should read approximately 10k Ohms.
5. If the reading is infinite (open) or zero (shorted), replace the thermistor.

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Problem: Thermistor Error. Older syntax for tE2.

How to Fix Dryer Error

1. Ensure the room temperature is above 45°F.
2. Unplug the dryer and remove the panel covering the heating duct.
3. Locate the secondary thermistor.
4. Unplug the connector and test resistance (should be approx 10k Ohms at room temp).
5. If resistance is out of range, replace the thermistor.

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Problem: Motor Error. The motor is not turning or the belt is broken (on models with belt detection).

How to Fix Dryer Error

1. Open the door and try to spin the drum by hand. If it spins very freely, the belt is broken.
2. If the belt is good, unplug the dryer and check the thermal fuse (a blown fuse cuts power to the motor on some models).
3. Test the motor start switch (centrifugal switch).
4. Replace the motor if windings are open.

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