How to retrieve error codes
If the unit stops and the TIMER indicator blinks, use the remote control to retrieve the error code.
Press for
1
5 seconds
Press for
3
5 seconds to
quit checking
• For certain errors, you may restart the unit for limited operation if there are 4 beeps when operation starts.
Abnormality/Protection
Diagnostic
display
control
H 00
No memory of failure
Indoor/outdoor abnormal
H 11
communication
Indoor intake air temperature sensor
H 14
abnormality
Outdoor compressor temperature
H 15
sensor abnormality
Outdoor current transformer (CT)
H 16
abnormality
H 19
Indoor fan motor mechanism lock
Indoor heat exchanger temperature
H 23
sensor abnormality
Outdoor air temperature sensor
H 27
abnormality
Outdoor heat exchanger temperature
H 28
sensor abnormality
H 33
Abnormal voltage
H 59
Human activity sensor abnormality
H 67
nanoe abnormality
* Some error code may not be applicable to your model. Consult authorised dealer for clarification.
ACXF55-21790_FC1806-00_S .indb 25
Press until you hear beep sound
2
(about 4 seconds), then write down
the error code
Turn the unit off and reveal the error
4
code to authorised dealer
Abnormality/Protection
Diagnostic
display
control
H 70
Sunlight sensor abnormality
H 97
Outdoor fan motor mechanism lock
H 98
Indoor high pressure protection
Indoor operating unit freeze
H 99
protection
Power factor correction (PFC) circuit
F 90
protection
F 91
Refrigeration cycle abnormality
Outdoor compressor abnormal
F 93
revolution
Outdoor cooling high pressure
F 95
protection
Power transistor module overheating
F 96
protection
F 97
Compressor overheating protection
F 98
Total running current protection
Outdoor direct current (DC) peak
F 99
detection
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2019/4/24 10:12:56