F15
Liebherr Fan Speed Control / Tachometer Fault

Freezer shows F15; internal fan speeds may be incorrect; noise or poor air circulation.

Advertisements

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.

Advertisements

Possible Causes

Evaporator fan tachometer signal failure, Faulty fan motor with integrated electronics, Damaged fan control circuit on PCB

How to Fix / Troubleshooting

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

Steps:

  • Access evaporator fan: Remove drawers and rear interior panel to reach the fan assembly.
  • Visual check: Ensure the fan blades are intact and not rubbing against the shroud.
  • Connector check: Reseat the multi-pin connector on the fan motor and on the control board.
  • Test operation: After reassembly, briefly power on and listen for smooth fan operation. If the fan starts and stops rapidly or does not reach speed, the tachometer circuit may be faulty.

Remedy: Replace the evaporator fan motor assembly if it includes the speed feedback electronics. If a new fan does not resolve F15, the main control board may need replacement.

Advertisements

Repair Difficulty

Hard 4/5

Required Part

Evaporator Fan Motor with Tachometer
Check Price on Amazon

We may earn a commission from links on this page.

Advertisements