ErrorCodeDoctor
Panasonic · Air Conditioner
Panasonic Air Conditioner H64 error code
Difficulty: Hard
·
Cost: $80–$250
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Duration: Requires professional service
The H64 error means your Panasonic air conditioner detected a fault with the outdoor high pressure sensor — the component that monitors refrigerant pressure on the high pressure side of the outdoor unit. This is an important safety sensor that protects the compressor and refrigerant circuit from dangerously high pressures. When it fails the unit stops operating as a safety measure. A qualified technician will need to inspect and replace the sensor.
Common causes
- Outdoor high pressure sensor has malfunctioned or failed
- Wiring to the sensor is loose or damaged
- Sensor is giving an out-of-range pressure reading
How to fix it
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1
Turn off the unit at the circuit breaker
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2
Contact a qualified technician to inspect and replace the outdoor high pressure sensor