Panasonic WH-SHF09F3E5 - Page 86

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Diagnosis display Abnormality/Protection control Abnormality judgement Primary location to verify
F36
Outdoor air temperature sensor
abnormality
Continue for 5 sec.
 Outdoor air temperature sensor
(defective or disconnected)
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
4 times occurrence in
20 minutes.
 Outdoor high pressure sensor
 Water pump or water leakage
 Clogged expansion valve or strainer
 Excess refrigerant
 Outdoor PCB