WH-MXC16G9E8 - Panasonic Air Conditioner Service Manual (repair manual). Page 123

123 

 
Malfunction Decision Conditions: 

During startup and operation of cooling and heating, the temperatures detected by the outdoor discharge pipe 
temperature sensor are used to determine sensor error. 

 
Malfunction Caused: 

1.  Faulty connector connection. 
2.  Faulty sensor. 
3.  Faulty outdoor unit PCB (main). 

 
Abnormality Judgment: 

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