Panasonic S-22KA1E5S Service Manual page 204

Ka1e5 series, ya1e5 series, ua1e5 series, na1e5 series, ma1e5 series,
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18.2.3
Indoor Intake Air Temperature Sensor Abnormality (F20-01)
Malfunction Decision Conditions
During startup and operation of cooling and heating, the temperatures detected by the indoor intake air
temperature sensor are used to determine sensor errors.
Malfunction Caused
Faulty connector connection.
Faulty sensor.
Faulty indoor unit PCB (main).
Abnormality Judgment
After 20 minutes operation start and indoor fan running.
Continue for 120 seconds.
Troubleshooting
204

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