ErrorCodeDoctor
Panasonic Air Conditioner H31 error code
The H31 error means your Panasonic air conditioner detected a fault with the swimming pool sensor. This sensor is used on specific models that integrate with pool heating systems to monitor pool water temperature. When it develops a fault the pool heating function cannot operate correctly. A qualified technician will need to inspect and replace the sensor.
Common causes
- Swimming pool temperature sensor has malfunctioned or failed
- Wiring to the sensor is loose or damaged
- This error only applies to models with pool heating integration
How to fix it
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1
Turn off the unit at the circuit breaker and wait 5 minutes then try restarting
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2
If H31 returns contact a qualified technician to inspect and replace the swimming pool sensor
Related Panasonic Air Conditioner error codes
H31 error — frequently asked questions
What does the H31 error mean on a Panasonic air conditioner?
The swimming pool sensor has an abnormality
What causes the H31 error?
The H31 error is usually caused by: Swimming pool temperature sensor has malfunctioned or failed; Wiring to the sensor is loose or damaged; This error only applies to models with pool heating integration.
Can I fix the H31 error myself?
This is rated a hard fix — it often requires tools, parts, or experience, and may be safer left to a professional technician.
How much does it cost to fix the H31 error?
Fixing the H31 error on a Panasonic air conditioner typically costs $80–$200, depending on parts and whether you do it yourself or hire a technician.
Is it safe to keep using my air conditioner with the H31 error?
We'd recommend addressing the H31 error before continuing to use the air conditioner, since hard-rated issues often involve a real fault rather than a minor glitch.