Panasonic CS-NE9LKE Service Manual page 53

Diagnosis Abnormality /
display Protection control
F93 Compressor abnormal
revolution
F95 Outdoor cooling high
pressure protection
F96 Power transistor module
overheating protection
F97 Compressor
overheating protection
F98 Total running current
protection
F99 Outdoor direct current
(DC) peak detection
Abnormality Protection
Judgement operation
4 times happen —
within 20 minutes
4 times happen —
within 20 minutes
4 times happen —
within 30 minutes
3 times happen —
within 30 minutes
3 times happen —
within 20 minutes
Continuous —
happen for 7 times
Problem
Compressor abnormal
revolution
Cooling high pressure
protection
Power transistor module
overheat
Compressor overheat
Total current protection
Power transistor module
current protection
53
Check location
• Power transistor module faulty or
compressor lock
• Check refrigeration system
• Outdoor air circuit
• PCB faulty
• Outdoor air circuit (fan motor)
• Insufficient refrigerant
• Check refrigeration system
• Power source or compressor lock
• Power transistor module faulty or
compressor lock