Panasonic WHUH12FE5 - Manual (Page 14)

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
H20 Abnormal water pump
H23 Abnormal refrigerant 1 sensor
H27 Abnormal service valve
H42 Compressor low pressure protection
H62 Abnormal water flow
H64 Abnormal high pressure sensor
H65 Abnormal deice water circulation
H70
Abnormal back-up heater overload
protector
H72 Abnormal tank temperature sensor
H76 Control panel 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 cooling / heating charge
F27 Abnormal pressure switch
F30 Abnormal water outlet sensor 2
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 cooling high pressure
Troubleshooting