70
Diagnosis
display
Abnormality /
Protection control
Abnormality
Judgment
Protection
Operation
Problem Check location
F95
Outdoor cooling high
pressure protection
4 times happen
within 20 minutes
—
Cooling high pressure
protection
Check refrigeration system
Outdoor air circuit
F96
Power transistor
module overheating
protection
4 times happen
within 30 minutes
—
Power transistor module
overheat
PCB faulty
Outdoor air circuit (fan motor)
F97
Compressor
overheating
protection
3 times happen
within 30 minutes
— Compressor overheat
Insufficient refrigerant
F98
Total running current
protection
3 times happen
within 20 minutes
— Total current protection
Check refrigeration system
Power source or compressor
lock
F99
Outdoor direct
current (DC) peak
detection
Continuous
happen for 7 times
—
Power transistor module
current protection
Power transistor module faulty
or compressor lock
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