Panasonic CU-2E15LBE Service Manual page 59

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