Panasonic CS-MRE7MKE Service Manual page 60

17.4.8. H27 (Outdoor Air Temperature Sensor Abnormality)
Malfunction Decision Conditions
During startup and operation of cooling and heating, the temperatures detected by the outdoor air temperature sensor are used
to determine sensor errors.
Malfunction Caused
• Faulty connector connection.
• Faulty sensor.
• Faulty PCB.
Troubleshooting
60