E12
Fhiaba Fan Tachometer / Speed Feedback Fault

Error E12 displayed; internal fan speeds are abnormal or not detected correctly by the control.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Fan motor with failed tachometer output, Broken tach wire in fan harness, Connector corrosion at main board, Faulty fan speed sensing circuit on control board

How to Fix / Troubleshooting

Safety first: Disconnect power before accessing any fan assemblies or the main control board.

Step 1 – Identify affected fan:

  • Refer to the service manual or error code chart to determine which fan (refrigerator, freezer, TriMode, or condenser) is associated with E12.

Step 2 – Inspect fan and wiring:

  • Access the fan and check the harness for damage, especially near connectors.
  • Ensure the connector is fully seated at both the fan and control board.

Step 3 – Replace fan if needed:

  • If the fan runs but E12 persists, the tachometer output may be faulty; replace the fan motor with the correct Fhiaba part.

Step 4 – Control board diagnosis:

  • If a new fan does not resolve E12, the main control board's sensing circuit may be defective and should be replaced by a professional.
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Repair Difficulty

Medium 3/5

Required Part

Evaporator Fan Motor with Tachometer
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