Panasonic Compressor Temperature Sensor Error

Display shows F4; compressor does not run.

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

Open or shorted compressor thermistor, Sensor detached from compressor, Damaged wiring, Defective PCB input

Safety first: Unplug and allow the compressor to cool.

Locate sensor: Find the thermistor on the compressor body or discharge line.
Check contact: Ensure it is firmly attached and insulated as originally installed.
Inspect wiring and test: Check for damage and measure resistance. Replace the sensor if out of spec.
Board replacement: If sensor and wiring are good, the main PCB may be faulty and should be replaced by a technician.

Hard 4/5

Compressor Thermistor

Check Price on Amazon

We may earn a commission from links on this page.