37
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
1
3
Press until you hear beep
sound, then write down the
error code
Turn the unit off and
inform the error code to an
authorised dealer.
2
4
• For certain errors, you may restart the unit for limited operation if there are 4 beeps when operation starts.
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 1 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)
H 39
Abnormal indoor operating unit or
standby units
Diagnostic
display
Abnormality/Protection control
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
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 85
Abnormal communication between
indoor & wireless LAN module
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 an authorised dealer for clari
fi
cation.
T
roubleshooting
English
ACXF55-31610.indb 37
ACXF55-31610.indb 37
8/26/2021 11:56:40 AM
8/26/2021 11:56:40 AM
