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25.2.5 Abnormal Solar Sensor (- / - / H28)
Malfunction Caused:
1 Faulty connector connection.
2 Faulty solar sensor.
3 Faulty indoor sub PCB.
Abnormality Judgment:
Continue for 5 seconds.
For safety reason and to prevent
component breakdown, always switch
off the power before remove and
connect the component.
YES
● Correct sensor connect ion
NO
YES
Abnormal solar sensor
H28 happens check connection at CN207 normal?
● Change solar sensor
NO
Measure resistance of sensor match characteristic?
Change Indoor sub PCB
Caution
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