59
Note:
“ ” - Frequency measured and fan speed fixed.
F93 Outdoor compressor abnormal
revolution
4 times occurrences
within 20 minutes
— • Compressor
F95 Cooling high pressure protection 4 times occurrences
within 20 minutes
— • Outdoor refrigerant cycle
F96 IPM (power transistor) overheating
protection
— — • Express refrigerant
• Improper heat radiation
• Outdoor PCB
F97 Outdoor compressor overheating
protection
4 times occurrences
within 10 minutes
— • Insufficient refrigerant
• Compressor
F98 Total running current protection 3 times occurrences
within 20 minutes
— • Excess refrigerant
• Improper heat radiation
F99 Outdoor direct current (DC) peak
detection
7 times occurrences — • Outdoor PCB
• Compressor
Abnormality
judgement
Emergency
operation
Primary location to verify
Diagnosis
display
Abnormality or protection control
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