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Error code reference

LG Freezer Error Codes

15 error codes documented with diagnostic procedures.

Have your model number? Get codes specific to your unit.
1Freezer sensor (F-SENSOR) open or short circuit4Freezer defrost sensor (F-DEF-SENSOR) open or short circuit.6Ambient sensor (EXT-SENSOR) open or short circuit.7Freezer fan motor (F-FAN) restriction or feedback signal defective.8Condenser fan motor (COMP-FAN) restriction or feedback signal defective.88/8EInsufficient cooling in lower part due to lower part interior sensor line cut or lower…88/E8Insufficient cooling / weak cooling or overcooling malfunction due to exterior sensor cut…88/EELower part sensor malfunction8E/88Upper part sensor malfunction9Freezer defrost errorCO/--Improper communication between MAIN PCB and display PCB (no communication for 30…E1Failure of left compartment sensor (sensor wire is cut or short-circuited).E2Failure of right compartment sensor (sensor wire is cut or short-circuited).E8/88Insufficient cooling / weak cooling or overcooling malfunction due to upper part cooling…UU/UUOver-cooling and weak-cooling in upper and lower part at the same time; insufficient…

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Common questions

How do I find the error code on my LG Freezer?
Most LG freezers show the code directly on the control panel display. If your model has no display, it can be read by entering diagnostic mode with the key sequence for your model. The full procedures include model-specific instructions for reading codes.
Are these codes specific to my model?
The codes here apply broadly to LG freezers. Meanings and diagnostic steps can vary by model and production year, so enter your model number for model-specific information and procedures.
What do I do if my code is not listed?
Some codes are model-specific or only appear in diagnostic mode. Enter your model number to get codes specific to your unit, or contact us. We update the database continuously from manufacturer service documentation.
How much does it cost to access the full diagnostic procedures?
A 3-day pass is $9.95 one-time and gives full access to all brands, codes, and procedures. Monthly access is $29/month with unlimited access to everything including Max AI diagnostics.