Philips WH-UD16CE5-A-1 Service Manual page 105

Diagnosis display Abnormality/Protection control
F41 PFC control
F42 Outdoor heat exchanger temperature
sensor abnormality
F43 Outdoor defrost sensor abnormality
F45 Indoor water outlet temperature sensor
abnormality
F46 Outdoor Current Transformer open
circuit
F48 Outdoor EVA outlet temperature sensor
abnormality
F49 Outdoor bypass outlet temperature
sensor abnormality
F95 Cooling high pressure overload
protection
Abnormality judgement
4 times occurrence within 10
minutes
Continue for 5 sec.
Continue for 5 sec.
Continue for 5 sec.
—
Continue for 5 sec.
Continue for 5 sec.
—
105
Primary location to verify
 Voltage at PFC
 Outdoor heat exchanger temperature
sensor (defective or disconnected)
 Outdoor defrost sensor (defective or
disconnected)
 Water outlet temperature sensor
(defective or disconnected)
 Insufficient refrigerant
 Outdoor PCB
 Compressor low
 Outdoor EVA outlet temperature sensor
(defective or disconnected)
 Outdoor bypass outlet temperature
sensor (defective or disconnected)
 Outdoor high pressure sensor
 Water pump or water leakage
 Clogged expansion valve or strainer
 Excess refrigerant
 Outdoor PCB