Daikin Air Conditioner error codes
Select a Daikin air conditioner error code to see what it means, common causes, and how to fix it.
Error Codes
CC
The humidity sensor system has a fault
CJ
The room temperature thermistor in the remote controller has a fault
E0
An outdoor unit protection device was activated
E1
The outdoor unit PCB (control board) has a fault
E3
The high pressure switch was activated — outdoor coil may be dirty
E4
The low pressure switch was activated — possible refrigerant shortage
E5
The inverter compressor motor overheated or is locked
E6
The standard compressor motor has an overcurrent or is locked
E7
The outdoor unit fan motor system has a fault
E8
The inverter compressor has an overcurrent fault
E9
The outdoor unit electronic expansion valve coil has a fault
EA
The four-way valve or cool/heat switching system has a fault
F3
An abnormal discharge pipe temperature was detected
F6
Abnormal high pressure detected — possible refrigerant overcharge
H0
The compressor sensor system has a fault
H1
The room temperature sensor or humidifier unit damper has a fault
H3
The high pressure switch (HPS) has a fault
H4
The low pressure switch (LPS) has a fault
H5
The compressor motor overload thermistor has a fault
H6
The compressor position detection sensor has a fault