Nibe Contactor chatter / failed start

Clicking noises from Nibe furnace but no start of compressor or heater

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

Low supply voltage, failing contactor coil, loose control wiring, faulty control board output

Safety: Electrical troubleshooting should be done by qualified personnel.

Check mains voltage: Have an electrician verify that supply voltage is within Nibe's specified range.
Tighten terminals: With power off, tighten all accessible control and power terminals feeding the contactors.
Observe pattern: If clicking occurs rapidly when a stage is called, the contactor or control output may be faulty and should be replaced.

Hard 4/5

Power Contactor

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