LG fridge error codes

LG Side by Side Refrigerator Error Codes

Error Code	Description
Er FS	Freezer Sensor error
Er rS	Refrigerator Sensor error
Er dS	Defrost Sensor error
Er IS	Ice Maker Sensor error
Er SS	Pantry Room Sensor error
Er rt	Room Sensor or Ambient Sensor error
Er It	Ice Maker Kit error
Er gf	Flow Meter Sensor error
Er dH	Poor Defrost error
Er IF	Ice Maker Fan error
Er FF	Freezer Fan Motor error
Er rF	Refrigerator Section Fan Motor error
Er CF	Condenser Fan Motor error
Er CO	Communication error between Main and Display PCB

A Green will blink on main pcb if any component failure or Disconnected from main pcb as below table.

LG Inverter Refrigerator Green LED Error Codes

Blink Sequence	Error Description	Solution
1 time	Defrost sensor error	Check the defrost sensor and wiring.
2 times	Knob dial error	Inspect the knob for proper operation.
3 times	Ref compartment sensor error	Verify the sensor connection and functionality.
4 times	Defrost circuit error	Check defrost timer and heater.
5 times	Ambient sensor error	Inspect the ambient sensor for damage.
No blinking	Normal operation	Continue regular monitoring.

A tactile switch is given on main pcb between components to testing cooling and defrosting system of LG refrigerator, we can press switch to test as below sequence.

LG Fridge Test Mode

Test Switch Operation	Description
1 Time Press	Start compressor instantly with fan motor. If the fan motor is faulty, it will either stop or run for a 20-second interval.
2 Time Press	Start defrost heater and stop working compressor and fan motor. The defrost heater starts if the defrost temperature is below 0 degrees Celsius and will remain on until the freezer temperature goes to 13 degrees Celsius.

⁷