Installation manual

[ IX Troubleshooting ]
- 246 -
HWE10050 GB
4240
1. Error Code
Overload protection
2. Error definition and error detection method
If the output current of "(Iac) >Imax (Arms)" or "THHS > 95°C[203°F] " is continuously detected for 10 minutes or more during
inverter operation.
3. Cause, check method and remedy
Refer to section -7- "Inverter" under part [4] Troubleshooting Principal Parts for error codes related to the inverter.(page 323)
4240
Model Imax(Arms)
P200,P250
EP200
19
P300-P450
EP250-EP350
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 342 V or above.
(3) Inverter failure Refer to IX [4] -7-.(page 323)
(4) Compressor failure Check that the compressor has not overheated during operation.
-> Check the refrigerant circuit (oil return section).
Refer to IX [4] -7- (2) [2].(page 325)