Panasonic S-22KA1E5 - Indoor Pipe Temperature Sensor Abnormality (F21-01)

246
19.5 Indoor Pipe Temperature Sensor Abnormality (F21-01)
Malfunction Decision Conditions
• During startup and operation of cooling and heating, the temperatures detected by the indoor pipe temperature
sensor are used to determine sensor errors.
Malfunction Caused
• Faulty connector connection.
• Faulty sensor.
• Faulty indoor unit PCB (main).
Abnormality Judgment
• Continue for 120 seconds.
Troubleshooting