Panasonic · Air Conditioner

Panasonic Air Conditioner H37 error code

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

The H37 error means your Panasonic air conditioner detected a fault with the outdoor liquid pipe temperature sensor. This sensor monitors the temperature of the liquid refrigerant in the outdoor pipe to help control the expansion and condensation process. When it fails the unit cannot manage the refrigerant cycle accurately and stops operating. A qualified technician will need to inspect and replace the sensor.

Common causes

Outdoor liquid pipe temperature sensor 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 H37 returns contact a qualified technician to inspect and replace the outdoor liquid pipe temperature sensor