Panasonic AQUAREA WH-ADC0912K6E5AN Service Manual page 196

18.5.7 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
196
For safety reason and to prevent
component breakdown, always switch
Caution
off the power before remove and
connect the component.
NO
● Correct sensor connection
NO
● Change swimming pool sensor