Panasonic WH-SXH09D0E8 Service Manual page 46

Air-to-water heatpump indoor unit outdoor unit
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Diagnosis display
Abnormality/Protection control
F46
Outdoor Current Transformer open
circuit
F48
Outdoor EVA outlet temperature sensor
abnormality
F49
Outdoor bypass outlet temperature
sensor abnormality
Abnormality judgement
Continue for 5 sec.
Continue for 5 sec.
46
Primary location to verify
Insufficient refrigerant
Outdoor PCB
Compressor low
Outdoor EVA outlet temperature sensor
(defective or disconnected)
Outdoor bypass outlet temperature
sensor (defective or disconnected)

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