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Error code reference

LG Refrigerator Error Code CF E

Abnormality of BLDC fan motor for mechanical room (condenser fan); caused when feedback signal is not received for over 65 seconds during BLDC fan…

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What the CF E error code actually means

The CF E code means your refrigerator's cooling fan in the back compartment has stopped working or is not responding the way it should. This fan helps keep the cooling system from overheating, so if it fails, the fridge may not cool properly. A technician will need to inspect the fan, its wiring connections, and the control board to find the exact cause.

Diagnostic procedure

The full CF E procedure

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MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Reset the unit and input Test 1 Mode, check fan rotation, check fan motor for stickiness, then check fan motor voltage at CON3 pins 4-1.
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Most common causes of CF E

Ranked by how often they cause this code
  1. 1Seized or sticky condenser fan motor
  2. 2Loose or damaged motor harness connection
  3. 3Failed drive IC on the control board
  4. 4Failed transistor (TR) in the motor drive circuit
  5. 5BLDC motor winding failure

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Questions people ask about CF E

What does CF E mean on a LG refrigerator?
CF E indicates that the LG refrigerator's control board did not receive a feedback signal from the condenser fan motor (BLDC type) in the mechanical room for more than 65 seconds during operation. This fault is triggered to protect the system when the condenser fan is not confirmed to be running. The cause can be a stuck fan, a wiring problem, or a failure in the motor drive circuitry on the control board.
Is it safe to keep using my refrigerator when CF E is displayed?
Continuing to run the refrigerator with an active CF E code is not recommended. The condenser fan is critical for removing heat from the mechanical room, and without it the compressor and condenser can overheat. Extended operation in this condition can lead to food spoilage, compressor damage, or shortened appliance life.
How much does it cost to repair a CF E error on an LG refrigerator?
Repair costs vary depending on the failed component. A replacement condenser fan motor typically ranges from around 30 to 80 dollars for the part, while a control board can range from 100 to 250 dollars or more. Adding professional labor, total repair costs generally fall between 150 and 400 dollars depending on the diagnosis and parts required.
Will resetting my LG refrigerator clear the CF E error?
A reset may temporarily clear the CF E code, but if the underlying cause is not corrected the error will return once the control board again fails to receive the fan feedback signal for 65 seconds. Resetting is a useful first step to confirm whether the fault is intermittent or persistent, but the fan motor, its wiring, and the drive circuit should all be inspected before assuming the problem is resolved.
How do I fix the CF E error on my LG refrigerator?
Start by resetting the unit and entering Test 1 Mode to observe whether the condenser fan runs. Check the fan blade for stickiness or obstruction, and inspect the harness connector for loose or damaged wiring. If the fan does not spin, measure voltage at CON3 pins 4 through 1 to determine whether the board is delivering drive voltage. Depending on findings, the repair may involve cleaning the fan, reseating the connector, replacing the fan motor, or replacing the control board.

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