Panasonic CS-XE9PKUA - Manual (Page 78)

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15.4.24 F96 (IPM Overheating)
Malfunction Decision Conditions
š During operating of cooling and heating, when IPM temperature data 212°F (100°C) is detected by the IPM
temperature sensor.
Multi Models only
o
Compressor Overheating: During operation of cooling and heating, when the compressor OL is activated.
o
Heat Sink Overheating: During operation of cooling and heating, when heat sink temperature data 194°F
(90°C) is detected by the heat sink temperature sensor.
Malfunction Caused
š IPM overheats due to short circuit of hot discharge air flow.
š IPM overheats due to defective of outdoor fan motor.
š IPM overheats due to defective of internal circuitry of IPM.
š IPM overheats due to defective IPM temperature sensor.
Multi Models Only
o
Compressor OL connector poor contact.
o
Compressor OL faulty.
Troubleshooting