Panasonic CS-E9PB4EA Service Manual page 70

Diagnosis Abnormality /
display Protection control
Outdoor cooling high
F95
pressure protection
Power transistor
F96 module overheating
protection
Compressor
F97 overheating
protection
Total running current
F98
protection
Outdoor direct
F99 current (DC) peak
detection
Abnormality Protection
Judgment Operation
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
Cooling high pressure
—
protection
Power transistor module
—
overheat
— Compressor overheat
— Total current protection
Power transistor module
—
current protection
70
Check location
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