Panasonic WH-SDC03H3E5 Service Manual page 152

16.5.7 Abnormal Swimming Pool Sensor (H31)
Malfunction Caused:
1 Faulty connector connection.
2 Faulty swimming pool sensor.
3 Faulty indoor sub PCB.
Abnormality Judgment:
Continue for 5 seconds.
Abnormal swimming pool sensor
H31 happens check connector sensor at CN204 connection
normal ?
Measure sensor resistance match swimming pool sensor
characteristic?
Change Indoor sub PCB
YES
YES
For safety reason and to prevent
component breakdown, always switch
Caution
off the power before remove and
connect the component.
NO
Correct connection
● Correct sensor connection
NO
● Change swimming pool sensor
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