CS-TZ60TKEW, CS-TZ71TKEW, CU-TZ60TKE, CU-TZ71TKE - Panasonic Air Conditioner Service Manual (repair manual). Page 117

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117 
18.4.26    F97 (Compressor Overheating) 
Malfunction Decision Conditions 
  During operation of cooling and heating, when compressor tank temperature data (112°C) is detected by the 
compressor tank temperature sensor. 
 
Malfunction Caused 
  Faulty compressor tank temperature sensor 
  2/3 way valve closed 
 Refrigerant 
shortage 
(refrigerant leakage) 
  Faulty outdoor unit PCB 
 Faulty 
compressor 
 
Troubleshooting 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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