Access our premium database of error codes, common faults, and professional repair solutions for LG appliances.
Heating problem during drying phase (Washer/Dryer) / Leakage Error (Washing Machine).
Heating element, sensor and safety thermostat issues for drying. Leakage related issues (not further specified).
Check heating element, sensor and safety thermostat.
The tub movement detection system is defective.
Defective tub movement detection system.
Replace tub movement detection system.
Current sensor error / Motor (short-circuited winding).
Motor (short-circuited winding), electronic board, wiring.
Verify motor (short-circuited winding), electronic board, or wiring.
Condenser fan Failure / Condenser fan failure leading to decreased performance.
A machine room fan disconnection, a defective Main PCB or a machine room fan blockage. The appliance has encountered a problem with the fan in the machine room cooling the condenser.
Unplug the appliance and wait for 20 seconds, then restart. Check if the connector at the PCB or machine room is removed or loose --> re-insert. Check if the connector measures 10 ~ 16 VDC between Black and Red Connections or 1 ~ 4 VDC between Purple and Red Connections. Replace the assemblies if the problem is not solved.
Communication Failure / Communication failure between PCBs.
A disconnection at the PCBs, the hinge, or a defective Main PCB. The appliance has encountered a problem with the communication between the Main PCB and the Display PCB.
Unplug the appliance and wait for 20 seconds, then restart. Check if the connector at the PCB or hinge room is removed or loose --> re-insert. Check if the connector measures 0 ~ 5 VDC between Orange and Red Connections or Orange and Brown Connections. Replace the assemblies if the problem is not solved.
Flow Sense - 80% airflow blockage.
Component fatigue, sensor feedback out of tolerance, wiring harness connector discontinuity, or electronic control board glitch.
Clean the vent. This is a severe fire hazard. PRO TIP: 'Flow Sense' or restricted airflow errors mean you must clean the vent — this is the #1 fire hazard.
Flow Sense - 90% airflow blockage.
Component fatigue, sensor feedback out of tolerance, wiring harness connector discontinuity, or electronic control board glitch.
Clean the vent. This is a severe fire hazard. PRO TIP: 'Flow Sense' or restricted airflow errors mean you must clean the vent — this is the #1 fire hazard.
Flow Sense - 95% airflow blockage.
Component fatigue, sensor feedback out of tolerance, wiring harness connector discontinuity, or electronic control board glitch.
Clean the vent. This is a severe fire hazard. PRO TIP: 'Flow Sense' or restricted airflow errors mean you must clean the vent — this is the #1 fire hazard.
LG DE: Door lock safety interlock fault in Washing Machine; door switch contact fails to close or open.
Incorrect door closure, door lock, or electronic board.
Check for objects blocking the door or a faulty door lock switch. PRO TIP: We see more clogged pump filters than any other single issue. Takes 5 minutes to clean and saves a $149 service call.
Defrosting Error / Defrost heater problem (Temperature not raised over 5 degrees Celsius within 80 minutes after defrost started)
Defrost heater disconnection or a defective main PCB. Defrost heater, temperature fuse short circuit, unplugged connector.
Unplug the appliance and wait for 20 seconds. Restart the appliance. Check if the connector at the PCB or inside the freezer is removed or loose, re-insert. Check if the connector measures 220 VAC at the Main PCB connector. Replace the assemblies if the problem is not solved.
LG DHE: Water/air heating failure in Tumble Dryer; heating circuit does not reach set temperature.
Defective Immersion / Air Heating Element & Klixon Thermostat, open/short circuit in the wiring harness, or faulty connector on the heating element, thermostat & safety fuse.
Check heating element or gas valve coils. PRO TIP: 'Flow Sense' or restricted airflow errors mean you must clean the vent — this is the #1 fire hazard.
Defrost Sensor problem / Defrost temperature detection problem
Defrost sensor disconnection or short circuit.
Unplug the appliance and wait for 20 seconds. Restart the appliance. Check if the connector at the PCB or inside the refrigerator is removed or loose, re-insert. Check if the connector measures out of 6 ~ 300 kilo-ohm range (normal is 13 kilo-ohm at 20 degrees Celsius). Replace the assemblies if the problem is not solved.
BioFresh air sensor fault
Component fatigue, sensor feedback out of tolerance, wiring harness connector discontinuity, or electronic control board glitch.
1. Disconnect 230V mains power for 3 minutes. 2. Inspect wire harness and edge connectors on control board for loose pins or oxidation. 3. Inspect mechanical linkages and sensors associated with subsystem. 4. Reset: Press Power to turn off. Unplug mains cable for 5 minutes. Press and hold Start/Pause for 10 seconds to discharge board capacitors, then restart.
Refrigeration compartment / upper compartment air sensor fault
Component fatigue, sensor feedback out of tolerance, wiring harness connector discontinuity, or electronic control board glitch.
1. Disconnect 230V mains power for 3 minutes. 2. Inspect wire harness and edge connectors on control board for loose pins or oxidation. 3. Inspect mechanical linkages and sensors associated with subsystem. 4. Reset: Press Power to turn off. Unplug mains cable for 5 minutes. Press and hold Start/Pause for 10 seconds to discharge board capacitors, then restart.
Refrigeration compartment evaporator sensor fault
Defective Compressor Motor Windings (Run/Start) & Defrost Heater, open/short circuit in the wiring harness, or faulty connector on the refrigeration compressor, defrost heater & ptc relay.
1. Disconnect 230V power. 2. Measure defrost heater resistance (nominal: 200Ω–400Ω). 3. Test bimetal defrost thermostat (0Ω cold, open circuit warm). 4. Clear ice blockage from condensate drain trough. 5. Reset: Press Power to turn off. Unplug mains cable for 5 minutes. Press and hold Start/Pause for 10 seconds to discharge board capacitors, then restart.
Freezer compartment air sensor fault
Component fatigue, sensor feedback out of tolerance, wiring harness connector discontinuity, or electronic control board glitch.
1. Disconnect 230V mains power for 3 minutes. 2. Inspect wire harness and edge connectors on control board for loose pins or oxidation. 3. Inspect mechanical linkages and sensors associated with subsystem. 4. Reset: Press Power to turn off. Unplug mains cable for 5 minutes. Press and hold Start/Pause for 10 seconds to discharge board capacitors, then restart.
Freezer compartment evaporator sensor fault
Defective Compressor Motor Windings (Run/Start) & Defrost Heater, open/short circuit in the wiring harness, or faulty connector on the refrigeration compressor, defrost heater & ptc relay.
1. Disconnect 230V power. 2. Measure defrost heater resistance (nominal: 200Ω–400Ω). 3. Test bimetal defrost thermostat (0Ω cold, open circuit warm). 4. Clear ice blockage from condensate drain trough. 5. Reset: Press Power to turn off. Unplug mains cable for 5 minutes. Press and hold Start/Pause for 10 seconds to discharge board capacitors, then restart.
Lower compartment air sensor fault
Component fatigue, sensor feedback out of tolerance, wiring harness connector discontinuity, or electronic control board glitch.
1. Disconnect 230V mains power for 3 minutes. 2. Inspect wire harness and edge connectors on control board for loose pins or oxidation. 3. Inspect mechanical linkages and sensors associated with subsystem. 4. Reset: Press Power to turn off. Unplug mains cable for 5 minutes. Press and hold Start/Pause for 10 seconds to discharge board capacitors, then restart.
LG E7: Operational cycle fault detected during Refrigerator / Freezer program execution.
Component fatigue, sensor feedback out of tolerance, wiring harness connector discontinuity, or electronic control board glitch.
1. Disconnect 230V mains power for 3 minutes. 2. Inspect wire harness and edge connectors on control board for loose pins or oxidation. 3. Inspect mechanical linkages and sensors associated with subsystem. 4. Reset: Press Power to turn off. Unplug mains cable for 5 minutes. Press and hold Start/Pause for 10 seconds to discharge board capacitors, then restart.
Freezer door contact fault
Component fatigue, sensor feedback out of tolerance, wiring harness connector discontinuity, or electronic control board glitch.
1. Disconnect 230V mains power for 3 minutes. 2. Inspect wire harness and edge connectors on control board for loose pins or oxidation. 3. Inspect mechanical linkages and sensors associated with subsystem. 4. Reset: Press Power to turn off. Unplug mains cable for 5 minutes. Press and hold Start/Pause for 10 seconds to discharge board capacitors, then restart.
Refrigeration door contact fault
Component fatigue, sensor feedback out of tolerance, wiring harness connector discontinuity, or electronic control board glitch.
1. Disconnect 230V mains power for 3 minutes. 2. Inspect wire harness and edge connectors on control board for loose pins or oxidation. 3. Inspect mechanical linkages and sensors associated with subsystem. 4. Reset: Press Power to turn off. Unplug mains cable for 5 minutes. Press and hold Start/Pause for 10 seconds to discharge board capacitors, then restart.
EEPROM error / Electronic board memory defective.
Defective electronic board memory.
1. Disconnect 230V mains power for 3 minutes. 2. Inspect wire harness and edge connectors on control board for loose pins or oxidation. 3. Inspect mechanical linkages and sensors associated with subsystem. 4. Reset: Press Power to turn off. Unplug mains cable for 5 minutes. Press and hold Start/Pause for 10 seconds to discharge board capacitors, then restart.
Failure of outside sensor
Snapping or short-circuit of outside temperature perceiving sensor.
Replace outside temperature perceiving sensor.
Condenser fan Failure / ABNORMAL CONDENSOR FAN MOTOR / Refrigerator Fan Error
Machine room fan disconnection, defective Main PCB, fan blockage, motor defect, wiring issue, or blockage.
Unplug the appliance and wait for 20 seconds, then restart. Check if the connector at the PCB or machine room is removed or loose, then re-insert. Check if the connector measures 10 ~ 16 VDC between Black and Red connections. Check if the connector measures 1 ~ 4 VDC between Purple and Red connections. Replace the assemblies if the problem is not solved.
LG ER CO: Operational cycle fault detected during Refrigerator / Freezer program execution.
Disconnection at the PCBs, the hinge, or a defective Main PCB. Short or open of lead wire connecting between Main PCB and Display PCB, transmission TR and receiving part.
Check wiring between the main control board and display board. PRO TIP: If your fridge is showing any 'E' code and it's under 5 years old, always try a hard reset (unplug 10 minutes) before calling. 60% of the time it clears temporary glitches.
LG ER DH: Cooling circuit or defrost system anomaly in Refrigerator / Freezer; compartment temperature deviation.
Defrost heater disconnection, a defective main PCB, temperature fuse short circuit, or unplugged connector.
Test defrost heater and bi-metal thermostat for continuity. PRO TIP: If your fridge is showing any 'E' code and it's under 5 years old, always try a hard reset (unplug 10 minutes) before calling. 60% of the time it clears temporary glitches.
Defrost Sensor failure (defrost temperature detection problem) / ABNORMAL FREEZER DEFROST SENSOR / ABNORMAL REFRIGERATOR DEFROST SENSOR / Defrost Sensor Error
Defrost sensor disconnection or short circuit. Freezer Defrost Sensor short&open circuit. Refrigerator Defrost Sensor short&open circuit.
Unplug the appliance and wait for 20 seconds, then restart. Check if the connector at the PCB or inside the refrigerator is removed or loose, then re-insert. Check if the connector measures out of 6 ~ 300 kilo-ohm range (normal is 13 kilo-ohm at 20 degrees Celsius). Replace the assemblies if the problem is not solved.
LG ER FF: Motor drive or inverter rotation anomaly in Refrigerator / Freezer; drum/motor fails to spin at target RPM.
Freezer fan disconnection, a defective Main PCB, a freezer fan blockage, motor defect, hooked lead wire, contact of structure with fan, short or open of lead wire (no signal of BLDC fan motor for more than 65 seconds).
Check freezer fan for frost or motor failure. PRO TIP: If your fridge is showing any 'E' code and it's under 5 years old, always try a hard reset (unplug 10 minutes) before calling. 60% of the time it clears temporary glitches.
LG ER FS: Operational cycle fault detected during Refrigerator / Freezer program execution.
A freezer sensor disconnection or short circuit / Snapping or short-circuit of freezer sensor.
Test freezer sensor resistance and connections. PRO TIP: If your fridge is showing any 'E' code and it's under 5 years old, always try a hard reset (unplug 10 minutes) before calling. 60% of the time it clears temporary glitches.
Icing fan motor failure (a very common call during summer).
Defective Compressor Motor Windings (Run/Start) & Defrost Heater, open/short circuit in the wiring harness, or faulty connector on the refrigeration compressor, defrost heater & ptc relay.
Defrost ice buildup around the fan or replace the fan motor. PRO TIP: If your fridge is showing any 'E' code and it's under 5 years old, always try a hard reset (unplug 10 minutes) before calling. 60% of the time it clears temporary glitches.
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