Panasonic CS-RE18JKX-1 Service Manual page 54

15.5.7. H23 (Indoor Pipe Temperature Sensor Abnormality)
Malfunction Decision Conditions
• During startup and operation of cooling and heating, the temperatures detected by the indoor heat exchanger temperature
sensor are used to determine sensor errors.
Malfunction Caused
• Faulty connector connection.
• Faulty sensor.
• Faulty PCB.
Troubleshooting
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