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[ IX Troubleshooting ]
- 184 -
HWE09120 GB
1. Error Code
Overload protection
2. Error definition and error detection method
If the output current of "(Iac) >Imax (Arms)" or "THHS > 100°C [203°F] " is continuously detected for 10 minutes or more
during inverter operation.
3. Cause, check method and remedy
Refer to section -6- "Inverter (YJMU-A)" under part [4] Troubleshooting Principal Parts for error codes related to the
inverter.(page 261)
4240 (YJMU-A)
Model Imax(Arms)
P72 model 19
P96, P120, P144 models 27
Cause Check method and remedy
(1) Air passage blockage Check that the heat sink cooling air passage is not blocked
(2) Power supply environment Power supply voltage is 414 V or above.
(3) Inverter failure Refer to IX [4] -6-.(page 261)
(4) Compressor failure Check that the compressor has not overheated during operation.
-> Check the refrigerant circuit (oil return section).
Refer to IX [4] -6- (2) [2].(page 263)