14
The operation LED blinks and error code appears on
the display.
• Disconnect the power supply, and
report the error code to an authorised
dealer.
• The timer operation will be cancelled
when an error code is displayed.
Diagnostic
display
Abnormality or Protection
control works
H12
Capacity mismatch
H15
Abnormal compressor temperature
sensor
H23
Abnormal refrigerant 1 sensor
H42
Compressor low pressure protection
H62
Abnormal water flow
H64
Abnormal high pressure sensor
H70
Abnormal back-up heater overload
protector
H72
Abnormal tank temperature sensor
H76
Remote control communication error
H90
Abnormal indoor / outdoor
communication
H91
Abnormal tank heater overload protector
H95
Abnormal voltage connection
H98
Outdoor high pressure protection
H99
Indoor heat exchanger freeze prevention
Diagnostic
display
Abnormality or Protection
control works
F12
Pressure switch activated
F14
Poor compressor rotation
F15
Abnormal outdoor fan motor lock
F16
Comprehensive current protection
F20
Compressor temperature overload
protection
F22
Transistor module temperature overload
protection
F23
DC peak abnormal of operation
F24
Abnormal Refrigerant cycle
F25
Abnormal in a *
1
cooling / heating charge
F27
Abnormal pressure switch
F36
Abnormal outdoor air temperature
sensor
F37
Abnormal water inlet sensor
F40
Abnormal outdoor discharge sensor
F41
Abnormal power factor correction
F42
Abnormal outdoor heat exchanger
sensor
F43
Abnormal outdoor defrost sensor
F45
Abnormal water outlet sensor
F46
Abnormalities in outdoor current
transformer disconnection
F48
Abnormal evaporator outlet temperature
sensor
F49
Abnormal bypass outlet temperature
sensor
F95
Abnormal *
1
cooling high pressure
Troubleshooting
*
1
The system is locked to operate without COOL mode. It can be unlocked only by authorized installers or our authorized service partners.
*
2
Only displayed when COOL mode is unlocked (Means when COOL mode is available).
