Panasonic · Air Conditioner

Panasonic Air Conditioner H24 error code

Difficulty: Hard · Cost: $80–$200 · Duration: Requires professional service

The H24 error means your Panasonic air conditioner detected a fault with the second indoor heat exchanger temperature sensor. This is the same type of fault as H23 but on the second sensor. Some models have multiple sensors on the indoor heat exchanger to monitor temperature at different points. A qualified technician will need to inspect and replace the faulty sensor.

Common causes

Indoor heat exchanger temperature sensor 2 has malfunctioned or failed
Wiring to the sensor is loose or damaged
Sensor is giving an out-of-range reading

How to fix it

1

Turn off the unit at the circuit breaker and wait 5 minutes then try restarting
2

If H24 returns contact a qualified technician to inspect and replace the indoor heat exchanger temperature sensor 2