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Error code reference

LG Refrigerator Error Code Freezer Room Fan Error

Fan motor system in FZ compartment has errors (feedback signal line contact failure, motor wire missing).

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What the Freezer Room Fan Error error code actually means

This error means the refrigerator's freezer fan is not working correctly, which can cause both the freezer and refrigerator sections to stop cooling properly. The control board is detecting either a wiring problem or a signal failure from the fan motor. A technician will need to check the fan, its wiring, and the control board to pinpoint the exact cause.

Diagnostic procedure

The full Freezer Room Fan Error procedure

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MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Check voltage of MAIN PCB CN76-3 Yellow <-> 1 Gray: shall be between 7V~12V.
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Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Most common causes of Freezer Room Fan Error

Ranked by how often they cause this code
  1. 1Faulty or Seized Freezer Fan Motor
  2. 2Broken or Disconnected Feedback Signal Wire
  3. 3Loose or Corroded Connector at CN76
  4. 4Ice Buildup Obstructing the Fan Blade
  5. 5Main PCB Output Failure

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Questions people ask about Freezer Room Fan Error

What does Freezer Room Fan Error mean on a LG refrigerator?
The Freezer Room Fan Error means the main control board has detected a problem with the fan motor system in the freezer compartment. The fault can involve the feedback signal line that confirms the motor is running, a missing or broken motor wire, or a voltage supply issue at the PCB connector. This fan is essential for circulating cold air, so the error can cause temperature problems throughout the refrigerator if left unresolved.
Is it safe to keep using my LG refrigerator when this error appears?
Continuing to use the refrigerator with this error active is not recommended for extended periods. The freezer fan is responsible for moving cold air throughout the unit, and a non-functioning fan will cause temperatures to rise in both the freezer and fresh food compartments. Food safety can be compromised if the error is not addressed promptly.
How much does it cost to repair the Freezer Room Fan Error on an LG refrigerator?
Repair costs vary depending on the root cause. A fan motor replacement typically costs between $80 and $200 including parts and labor. A main PCB replacement is more expensive, generally ranging from $200 to $400 or more depending on the model and service rates in your area. Simple fixes like reseating a connector or clearing ice buildup may cost less if a technician can resolve it during a single diagnostic visit.
Can I fix the Freezer Room Fan Error myself?
Some causes, such as a loose connector at the main PCB or ice blocking the fan blade, can be addressed without specialized tools. However, diagnosing this error properly requires a multimeter to check voltage at CN76 (pins 3 and 1) and a working knowledge of refrigerator wiring. If the motor itself or the main PCB has failed, replacement parts will be needed and a qualified technician is recommended.
Will resetting my LG refrigerator clear the Freezer Room Fan Error?
A reset may temporarily clear the error code from the display, but it will return if the underlying mechanical or electrical fault has not been repaired. If the fan motor is seized, wiring is broken, or the PCB is not supplying the correct voltage, the error will reappear after the refrigerator restarts and the board attempts to communicate with the fan again.

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