CS-MZ20UD3EA - Panasonic Air Conditioner Service Manual (repair manual). Page 91

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91 
16.4.23  F93 (Compressor Rotation Failure) 
Malfunction Decision Conditions 
  A compressor rotation failure is detected by checking the compressor running condition through the position 
detection circuit. 
 
Malfunction Caused 
  Compressor terminal disconnect 
  Faulty Outdoor PCB 
 Faulty 
compressor 
 
Troubleshooting 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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