ErrorCodeDoctor

Daikin Air Conditioner error codes

Select a Daikin air conditioner error code to see what it means, common causes, and how to fix it.

CC

The humidity sensor system has a fault

hard

CJ

The room temperature thermistor in the remote controller has a fault

medium

E0

An outdoor unit protection device was activated

hard

E1

The outdoor unit PCB (control board) has a fault

hard

E3

The high pressure switch was activated — outdoor coil may be dirty

medium

E4

The low pressure switch was activated — possible refrigerant shortage

hard

E5

The inverter compressor motor overheated or is locked

hard

E6

The standard compressor motor has an overcurrent or is locked

hard

E7

The outdoor unit fan motor system has a fault

medium

E8

The inverter compressor has an overcurrent fault

hard

E9

The outdoor unit electronic expansion valve coil has a fault

hard

EA

The four-way valve or cool/heat switching system has a fault

hard

F3

An abnormal discharge pipe temperature was detected

hard

F6

Abnormal high pressure detected — possible refrigerant overcharge

hard

H0

The compressor sensor system has a fault

hard

H1

The room temperature sensor or humidifier unit damper has a fault

hard

H3

The high pressure switch (HPS) has a fault

hard

H4

The low pressure switch (LPS) has a fault

hard

H5

The compressor motor overload thermistor has a fault

hard

H6

The compressor position detection sensor has a fault

hard