ErrorCodeDoctor
Panasonic Air Conditioner H85 error code
The H85 error means your Panasonic air conditioner detected a communication failure between the indoor unit control board and the wireless LAN module. This affects Wi-Fi connectivity and Panasonic Comfort Cloud app functions. The unit may still operate manually. A power reset sometimes clears a temporary fault. If H85 persists the wireless LAN module or its wiring will need professional inspection.
Common causes
- Wireless LAN module is not communicating correctly with the indoor unit control board
- Wiring between the indoor unit and wireless LAN module is loose or damaged
- Wireless LAN module has malfunctioned or failed
How to fix it
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1
Turn off the unit at the circuit breaker and wait 5 minutes then turn it back on
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2
If H85 returns contact a qualified technician to inspect the wireless LAN module and its connection to the indoor unit
Related Panasonic Air Conditioner error codes
H85 error — frequently asked questions
What does the H85 error mean on a Panasonic air conditioner?
Abnormal communication detected between the indoor unit and the wireless LAN module
What causes the H85 error?
The H85 error is usually caused by: Wireless LAN module is not communicating correctly with the indoor unit control board; Wiring between the indoor unit and wireless LAN module is loose or damaged; Wireless LAN module has malfunctioned or failed.
Can I fix the H85 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 H85 error?
Fixing the H85 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 H85 error?
We'd recommend addressing the H85 error before continuing to use the air conditioner, since hard-rated issues often involve a real fault rather than a minor glitch.