Panasonic · Air Conditioner

Panasonic Air Conditioner H39 error code

Difficulty: Hard · Cost: $100–$300 · Duration: Requires professional service

The H39 error means your Panasonic multi-split air conditioner detected an abnormality between the active operating indoor unit and one or more standby indoor units. This is specific to multi-split systems where one outdoor unit serves multiple indoor units. When communication or operation between units becomes abnormal the system stops. A qualified technician will need to inspect the multi-split wiring and configuration.

Common causes

Communication fault between the operating indoor unit and standby indoor units
Wiring between indoor units in a multi-split system is incorrect or damaged
One of the standby indoor units has developed a fault

How to fix it

1

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

If H39 returns contact a qualified technician to inspect the multi-split wiring and indoor unit configuration