Montpellier Fan Control or Sensor Issue

Interior fan runs constantly even when set temperature is reached

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.

Possible Causes

Control board programmed for continuous fan operation, Faulty temperature sensor, Stuck fan relay on PCB

Safety: Unplug before accessing sensors or PCB.

Check manual: Some Montpellier models are designed to run the fan continuously for even temperature. Confirm if this is normal behavior.
Verify temperature: If the cabinet is overcooling or unstable, test and replace the temperature sensor as needed.
PCB fault: If the fan should cycle but does not, the fan relay or driver on the main PCB may be stuck and require board replacement.

Medium 3/5

Main Control Board

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