Panasonic Room Temperature Sensor Error (Open/Short)

Display shows F2; unit may shut down or not start.

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 circuit in temperature thermistor, Shorted thermistor, Disconnected sensor plug, Damaged sensor wiring

Safety first: Disconnect power.

Locate room thermistor: Typically near the air intake or on the evaporator frame.
Check plug and wiring: Ensure the connector is fully seated on the PCB and that the wires are intact.
Measure resistance: Disconnect the sensor and measure resistance at room temperature. Replace if reading is near 0 Ω or infinite, or far from spec.
Clear code: After replacing the sensor, unplug the unit for several minutes to reset, then test operation.

Medium 3/5

Room Temperature Thermistor

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