88
Diagnosis display
Abnormality/Protection control
Abnormality Judgement
Primary location to verify
F37
Indoor water inlet temperature sensor
abnormality
Continue for 5 sec.
Water inlet temperature sensor
(defective or disconnected)
F40
Outdoor discharge pipe temperature
sensor abnormality
Continue for 5 sec.
Outdoor discharge pipe temperature
sensor (defective or disconnected)
F41
PFC control
4 times occurrence within 10
minutes
Voltage at PFC
F42
Outdoor heat exchanger temperature
sensor abnormality
Continue for 5 sec.
Outdoor heat exchanger temperature
sensor (defective or disconnected)
F43
Outdoor defrost sensor abnormality
Continue for 5 sec.
Outdoor defrost sensor (defective or
disconnected)
F45
Indoor water outlet temperature sensor
abnormality
Continue for 5 sec.
Water outlet temperature sensor
(defective or disconnected)
F46
Outdoor Current Transformer open
circuit
—
Insufficient refrigerant
Outdoor PCB
Compressor low
F48
Outdoor EVA outlet temperature sensor
abnormality
Continue for 5 sec.
Outdoor EVA outlet temperature sensor
(defective or disconnected)
F49
Outdoor bypass outlet temperature
sensor abnormality
Continue for 5 sec.
Outdoor bypass outlet temperature
sensor (defective or disconnected)
F95
Cooling high pressure overload
protection
—
Outdoor high pressure sensor
Water pump or water leakage
Clogged expansion valve or strainer
Excess refrigerant
Outdoor PCB
Summary of Contents for WH-MHF09G3E8
Page 32: ...32 10 1 2 Solar Printed Circuit Board Optional ...
Page 33: ...33 10 2 Refrigerant System 10 2 1 Main Printed Circuit Board ...
Page 34: ...34 10 2 1 1 Noise Filter Printed Circuit Board ...
Page 47: ...47 Heat Mode Operation Time Chart ...
Page 49: ...49 ...
Page 50: ...50 ...
Page 56: ...56 ...
Page 57: ...57 ...
Page 58: ...58 ...
Page 127: ...127 17 3 To Remove The Cabinet Rear Plate 17 4 To Remove Pressure Gauge 17 5 To Remove RCCB ...
Page 138: ...138 19 2 Water System 44 46 17 16 4 34 42 18 43 3 33 9 1 45 45 47 2 35 48 36 19 ...