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UV MODULE ERROR Cause Ultra-Violet dispenser sanitizing led module bad. Solution Troubleshooting and inspection must be done to find the root cause of this error code. LG InstaView: Refresh your dispenser nozzle with UV Nano – YouTube [LG Refrigerator] – Operation of UVnano & dispenser lights on a Side-by-Side model – YouTube NOTE: UV clean […]

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WATER TANK SWITCH ERROR Cause Tank switch error   Solution Check switch for 5Vdc from Main PCB DETAILS BELOW:

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SABBATH MODE NOT AN ERROR Cause Sabbath Mode has been activated Solution Hold wi/fi and freezer button for 3 seconds. Display should go back to normal display. If no wi/fi button then press & hold the Freezer and Water Filter Replace buttons for 3 seconds. If your display doesn’t have “Water Filter Replace” button, press & […]

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DISPENSER SUB BOARD COMMUNICATION ERROR Cause Dispenser sub board communications error   Solution Check wiring and connections on each board.  Some models will have the dispenser sub board communicating with the Main PCB. Some models will have the dispenser sub board communicating with the display board. See the specific wiring diagram for the model you […]

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WATER FLOW METER ERROR Cause Flow meter located on the pilot valve is defective Solution Check wiring and connections to flow meter and   check flow meter resistance and voltages Cause No water supplied or very low water pressure Solution Check customer for water supplied, water filter clogged or possible failure of water valve. DETAILS […]

REF_IU

FREEZER ICE MAKER ERROR Cause Ice maker in freezer is defective or has no voltage to the ice maker Solution Check wiring and connections to freezer ice maker. Check voltage to the ice maker.  Cause Ice maker may be jammed with ice chips. Solution Thaw the ice maker and test again. Cause Heated mold style […]

REF_IT

IN-DOOR ICE MAKER KIT ERROR Cause Ice maker in door is defective or has no voltage to the ice maker Solution Check wiring and connections to ice maker. Check voltage to the ice maker. Cause Ice maker may be jammed with ice chips. Solution Thaw the ice maker and test again. Cause Heated mold style […]

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DEFROST HEATER ERROR This error code may be displayed as either E rdH, or E fdH, reflecting Fresh food area, or Freezer area, respectively. Cause Defrost Failure, the Defrosting Sensor does not reach 40° within 80 minutes after starting defrost. Short or disconnection of the Heater Circuit. Solution Check the wiring and connections at Defrost […]

REF_HS

HUMIDITY SENSOR ERROR Cause  Short or disconnection of the Humidity Sensor.   Solution Check the wiring at Sensor, and at the  Main PCB. Remember an ERROR CODE will only appear if 0 or 5Vdc is detected at the Main PCB DETAILS BELOW:

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ROOM TEMPERATURE SENSOR ERROR Cause Short of disconnection of the Room Sensor. Solution Check the wiring at Sensor, and at the Main PCB. Remember an ERROR CODE will only appear if 0 or 5Vdc is detected at the Main PCB DETAILS BELOW: