Operating Instructions
22
Troubleshooting
Diagnostic
display
Abnormality/Protection control
H 00
No memory of failure
H 11
Indoor/outdoor abnormal communication
H 12
Indoor unit capacity unmatched
H 14
Indoor intake air temperature sensor abnormality
H 15
Outdoor compressor temperature sensor
abnormality
H 16
Outdoor current transformer (CT) abnormality
H 17
Outdoor suction temperature sensor abnormality
H 19
Indoor fan motor mechanism lock
H 21
Indoor fl oat switch operation abnormality
H 23
Indoor heat exchanger temperature sensor 1
abnormality
H 24
Indoor heat exchanger temperature sensor 2
abnormality
H 25
Indoor ion device abnormality
H 26
Minus ION abnormality
H 27
Outdoor air temperature sensor abnormality
H 28
Outdoor heat exchanger temperature sensor
abnormality
H 30
Outdoor discharge pipe temperature sensor
abnormality
H 31
Abnormal swimming pool sensor
H 32
Outdoor heat exchanger temperature sensor 2
abnormality
H 33
Indoor/outdoor misconnection abnormality
H 34
Outdoor heat sink temperature sensor
abnormality
H 35
Indoor/outdoor water adverse current abnormality
H 36
Outdoor gas pipe temperature sensor abnormality
H 37
Outdoor liquid pipe temperature sensor
abnormality
H 38
Indoor/outdoor mismatch (brand code)
Diagnostic
display
Abnormality/Protection control
H 39
Abnormal indoor operating unit or standby units
H 41
Abnormal wiring or piping connection
H 50
Ventilation fan motor locked
H 51
Ventilation fan motor locked
H 52
Left-right limit switch fi xing abnormality
H 58
Indoor gas sensor abnormality
H 59
Eco sensor abnormality
H 64
Outdoor high pressure sensor abnormality
H 67
nanoe abnormality
H 70
Light sensor abnormality
H 71
DC cooling fan inside control board abnormality
H 72
Abnormality tank temperature sensor
H 97
Outdoor fan motor mechanism lock
H 98
Indoor high pressure protection
H 99
Indoor operating unit freeze protection
F 11
4-way valve switching abnormality
F 16
Total running current protection
F 17
Indoor standby units freezing abnormality
F 18
Dry circuit blocked abnormality
F 87
Control box overheat protection
F 90
Power factor correction (PFC) circuit protection
F 91
Refrigeration cycle abnormality
F 93
Outdoor compressor abnormal revolution
F 94
Compressor discharge pressure overshoot
protection
F 95
Outdoor cooling high pressure protection
F 96
Power transistor module overheating protection
F 97
Compressor overheating protection
F 98
Total running current protection
F 99
Outdoor direct current (DC) peak detection
* Some error code may not be applicable to your model. Consult authorised dealer for clarification.
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
5 seconds
Press for 5
seconds to
quit checking
Press until you hear beep
sound, then write down the
error code
Turn the unit off and reveal the
error code to authorised dealer
21
3
4
•
For certain errors, you may restart the unit for limited operation if there are 4 beeps when operation starts.
ACXF55-17710_book1.indb 22ACXF55-17710_book1.indb 22 12/14/2017 3:59:40 PM12/14/2017 3:59:40 PM