LG Dryer Error Codes and Troubleshooting Steps

: June 17, 2024
: LG

No.	Error	Symptom	Cause
1	Humidity Sensor Failure	HS	The load is too small. The appliance is

tilted. Laundry is gathered to one side. Non-distributable things are put into the drum.
2| Electric dryer power cord is not connected correctly, or house power supply is incorrect| PS or PF or nP| Not fully drained within 10 minutes.
3| The duct is about to 90%-95% blocked. (“d90″ or d95” error code displayed 2 hours only)| d90, d95| Water is overflowing. (water level frequency is over 21.3kHz). If FE is displayed, the drainpump will operate to drain the water automatically.
4| Door SW| dE| The THERMISTOR is out of order.
5| Wire connection (Black-White-Red)| PS| The connector (3-pin,male,white) in the MOTOR HARNESS is not connected to the connector(3-pin, female,white) of STATOR ASSEMLY.
6| Thermistor of stream generator| tE4| EEPROM is out of order. Displayed only when the START/PAUSE button is first pressed in the Load Test Mode.
7| EE Prom operation is abnormal| EE| Machine is working, the power is supplied rapidly.
8| Water supply pump| E5| If the washing machine detects too many suds, it displays the error code and adds Suds Reducig cycle. This adds about two hours to the cycle time.
9| Steam generator| ADD| Vibration sensor to break down
10| Drum outlet thermistor open/short| tE1| The amount of liquid detergent in the detergent reservoir did not decrease. After putting the detergent into the detergent reservoir, it was lft for a long time and the detergent hardened.
11| Compressor discharge pipe thermistor temperature Open/short| tE2| The amount of liquid detergent in the detergent reservoir did not decrease.
12| Restricted Motor (Restart- Not start motor- Not operation product-display “LE1”)| LE1| The amount of fabric softener in the softener reservoir did not decrease. After putting the softener into the softer reservoir, it was left for along time and the fabric softener hardened
13| Detect low electric current| LE2| The amount of fabric softener in the softener reservoir did not decrease.
14| When drainage pump doesn’t work well| OE| Ther washer was operated without completely closing the drawer. The drawer was opened during the washer operation
15| Compressor (restart – no drive product – sign “AE” error)| AE| The load is too small. The appliance is tilted. Laundry is gathered to one side. Non- distributable things are put into the drum.
16| If WiFi product is not registered (normal product)| nF| Correct water level (24.6kHz) is not reached within 8 minutes after water is supplied or it does not reach the preset water levelwithin 20 minut
17| Vibration Sensor Error| nE| Occurs when Vibration Sensor Communication is not working. Such as vibration sensor register setup error, removal, etc.

1. Humidity Sensor Failure (HS)

Symptom: The load is too small, the appliance is tilted, laundry is gathered to one side, non-distributable items are in the drum.

Troubleshooting Steps:

Ensure the dryer is on a level surface to prevent tilting.
Adjust the load to ensure it’s evenly distributed and add more items if the load is too small.
Check and clean the humidity sensor to ensure it’s not obstructed by lint or debris.

2. Power Supply Error (PS, PF, nP)

Symptom: Not fully drained within 10 minutes.

Troubleshooting Steps:

Verify that the power cord is connected correctly and securely.
Check the house’s power supply for the correct voltage and circuit requirements for the dryer.
Ensure the dryer’s drain path is clear and unobstructed.

3. Duct Blockage (d90, d95)

Symptom: Duct is about 90%-95% blocked.

Troubleshooting Steps:

Inspect and clean the dryer’s vent duct to remove any lint buildup or obstructions.
Verify that the external venting is not blocked or restricted.
Ensure the ducting used is per the manufacturer’s recommendations for length and type.

4. Door Switch Error (dE)

Symptom: The thermistor is out of order.

Troubleshooting Steps:

Check the door switch for proper operation. Replace if faulty.
Inspect the wiring connections to the door switch and thermistor for looseness or damage.
Test the thermistor with a multimeter and replace if it is not within the manufacturer’s specifications.

5. Wire Connection Error (PS)

Symptom: Connector in the motor harness is not connected to the stator assembly.

Troubleshooting Steps:

Check the wire connections between the motor harness and the stator assembly. Ensure they are secure and properly connected.
Inspect the wiring for any signs of damage or wear and replace if necessary.
Confirm that the motor is receiving power and functioning correctly.

6. Thermistor Error (tE4)

Symptom: EEPROM is out of order.

Troubleshooting Steps:

Reset the dryer to see if the error clears.
Inspect the thermistor and its connections for any issues. Replace if faulty.
If the error persists, the control board EEPROM may need to be checked by a professional.

7. EE Prom Error (EE)

Symptom: Machine is working, power is supplied rapidly.

Troubleshooting Steps:

Perform a power cycle on the dryer to reset the system.
If the error recurs, inspection of the EE Prom components and connections may be necessary.
Consult a service technician if the problem persists, as the control board may require repair or replacement.

8. Water Supply Pump Error (E5)

Symptom: Excessive suds detected.

Troubleshooting Steps:

Use the correct type and amount of detergent to prevent excessive suds.
Run a cleaning cycle without laundry to remove residual suds and detergent.
Check the water supply pump for blockages or malfunctions and clean or replace as necessary.

9. Steam Generator Error (ADD)

Symptom: Vibration sensor breakdown.

Troubleshooting Steps:

Check the steam generator for proper operation and any signs of damage.
Inspect the vibration sensor for connectivity and function. Replace if defective.
Ensure the dryer is balanced and level to reduce unnecessary vibration.

10. Drum Outlet Thermistor Error (tE1)

Symptom: The amount of liquid detergent in the detergent reservoir did not decrease. The detergent hardened over time.

Troubleshooting Steps:

Check Thermistor: Inspect the drum outlet thermistor for any damage or loose connections and ensure it is securely connected. Replace if found open or shorted.
Clean Detergent Reservoir: Remove and clean the detergent reservoir to ensure no hardened detergent is blocking the outlet.
Reset Dryer: After cleaning and checking, reset the dryer by unplugging it for a few minutes and then plugging it back in.

11. Compressor Discharge Pipe Thermistor Error (tE2)

Symptom: Similar issue with the detergent not decreasing, possibly a misdescription.

Troubleshooting Steps:

Inspect Thermistor: Locate and examine the compressor discharge pipe thermistor for any signs of damage or incorrect positioning. Replace if necessary.
Ensure Proper Airflow: Check for any obstructions in the dryer’s exhaust system that might affect the compressor’s function.

12. Restricted Motor Error (LE1)

Symptom: The amount of fabric softener in the softener reservoir did not decrease due to hardening.

Troubleshooting Steps:

Check Motor: Ensure the motor is not physically obstructed or overloaded.
Clean Softener Reservoir: Clean the softener reservoir to remove any hardened fabric softener that could impede its function.
Reset and Test: Reset the dryer and run a short cycle to ensure the motor starts and operates correctly.

13. Low Electric Current Error (LE2)

Symptom: Fabric softener in the reservoir did not decrease.

Troubleshooting Steps:

Electrical Inspection: Check the dryer’s electrical supply for any issues that could cause low current, including the outlet and breaker.
Clean Reservoir: Ensure the fabric softener reservoir is clean and free from any clogs or hardened residue.
Consult a Technician: If the problem persists, it might be due to an internal electrical issue requiring professional inspection.

14. Drainage Pump Error (OE)

Symptom: The washer was operated without the drawer fully closed or was opened during operation.

Troubleshooting Steps:

Check Drainage System: Inspect the pump and hoses for clogs or obstructions and clean as necessary.
Ensure Drawer Closure: Make sure the drawer is fully closed before starting the dryer. Check for any damage that could prevent proper closure.
Test Pump Function: After checking, test the pump by running a cycle to ensure it operates correctly.

15. Compressor Error (AE)

Symptom: The load is too small, the appliance is tilted, or laundry is not evenly distributed.

Troubleshooting Steps:

Balance the Load: Even out the laundry within the drum and add more items if necessary to prevent small load issues.
Level the Dryer: Ensure the dryer is properly leveled. Adjust the feet if necessary to stabilize the appliance.
Check Compressor: If the error persists, inspect the compressor for any signs of malfunction and consult a technician for repair or replacement.

16. WiFi Registration Error (nF)

Symptom: The correct water level is not reached within the specified time.

Troubleshooting Steps:

WiFi Connectivity: Ensure the dryer is within range of the WiFi router and that the network is functioning correctly.
Register Product: Follow the manufacturer’s instructions to properly register your WiFi-enabled product.
Consult Manual: Refer to the user manual for specific instructions on connecting and registering your dryer to WiFi.

17. Vibration Sensor Error (nE)

Symptom: Vibration sensor communication is not working due to setup errors or removal.

Troubleshooting Steps:

Check Sensor Connection: Ensure the vibration sensor is properly connected and secured.
Sensor Setup: Verify the sensor is correctly set up and calibrated according to the manufacturer’s instructions.
Replace Sensor: If the error continues, the sensor may need to be replaced. Consult a professional for accurate diagnosis and replacement.

FAQ

Q1: What preventive maintenance can be performed to avoid future humidity sensor failures in LG dryers?

A1: Preventive maintenance is key to ensuring your LG dryer’s humidity sensor operates effectively over time. Here are steps to minimize the risk of sensor failure:

Regular Cleaning: Periodically clean the lint filter before or after each load to prevent lint buildup. Additionally, use a soft brush or cloth to gently clean the sensor itself, which is typically located near the lint filter. This removes any residue that may interfere with its operation.
Ventilation Check: Ensure the dryer venting system is clean and unobstructed. A blocked vent can cause humidity levels to rise inside the dryer, affecting sensor performance. Annual or semi-annual cleaning of the vent ductwork is recommended.
Balanced Loads: Avoid overloading or underloading the dryer. Ensure laundry is evenly distributed within the drum for each cycle. This helps maintain optimal airflow and drying consistency, reducing stress on the sensor.
Use Correct Settings: Select the appropriate drying cycle for the type of load being dried. Misuse can lead to conditions that are not ideal for the sensor’s accuracy.
Monitor Detergent Use: When washing items before drying, use the correct amount of detergent. Excess detergent can lead to higher humidity levels in the dryer, potentially affecting the sensor.

Q2: How can I accurately test the voltage and current requirements for my LG dryer to ensure it matches my home’s power supply?

A2: Testing the voltage and ensuring compatibility with your LG dryer involves several steps:

Review Dryer Specifications: Check the dryer’s manual or identification plate for its voltage and current requirements. LG dryers typically require a 220-240 volt AC supply for electric models or a 110-120 volt AC supply for gas models.
Use a Multimeter: To test the outlet’s voltage, set a multimeter to the voltage setting. Insert the probes into the outlet slots. For a standard electric dryer, you should see a reading close to 220-240 volts. For gas models with electric controls, you should see around 110-120 volts.
Circuit Breaker Check: Ensure the circuit breaker designated for the dryer is of the correct rating as per the dryer’s requirements. It should be a double-pole breaker for 220-240 volt supplies.
Professional Inspection: If uncertain or if discrepancies are noted, consider hiring a licensed electrician to inspect your electrical supply and connections. This ensures that all electrical standards are met and reduces the risk of improper installation.

Q3: Are there any recommended practices for cleaning and maintaining the vent duct to prevent duct blockage errors?

A3: Maintaining the vent duct of your LG dryer is crucial to prevent blockages that can lead to drying inefficiencies or safety hazards. Here are recommended practices:

Regular Inspection and Cleaning: Inspect and clean the dryer vent and ductwork at least once a year. Use a vent brush kit to remove lint buildup inside the duct. If the duct is long or has several turns, consider hiring a professional service.
Shorten the Vent Path: Minimize the length and number of turns in the vent duct to improve airflow and efficiency. This reduces the likelihood of lint buildup and blockages.
Use Rigid or Flexible Metal Ducting: Metal ducting is more durable and less prone to sagging or kinking than plastic or foil types, reducing the risk of blockages.
Ensure Proper Venting to the Outside: Verify that the vent duct is properly connected and vents to the outside of your home, not into an attic, crawl space, or garage. This ensures moist air is expelled directly outdoors.
Check External Vent Flap: Regularly check the external vent flap or hood to ensure it opens freely when the dryer is operating and is free from obstruction or buildup.