[ IX Troubleshooting ]
- 139 -
HWE1018A 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 [212°F] " is continuously detected for 10 minutes or more during
inverter operation.
3. Cause, check method and remedy
Refer to section -6- "Inverter" under part [4] Troubleshooting Principal Parts for error codes related to the inverter.(page 191)
1. Error Code
IPM error (Detail code 101)
2. Error definition and error detection method
In the case of 4250
Overcurrent is detected by the overcurrent detection resistor (RSH) on the INV board.
In the case of 4255
IPM error signal is detected.
3. Cause, check method and remedy
In the case of 4250
In the case of 4255
Refer to section -6- "Inverter" under part [4] Troubleshooting Principal Parts for error codes related to the inverter.(page 191)
4240
Model Imax(Arms)
P250 model 19
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] -6-.(page 191)
(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 193)
4250
4255
Cause Check method and remedy
(1) Inverter output related Refer to IX [4] -6- (2) [1] - [4].(page 193)
Check the IGBT module resistance value of the INV board, if no
problems are found.
(Refer to the Trouble shooting for IGBT module)
Cause Check method and remedy
(1) Fan motor abnormality Refer to IX [4] -6- (2) [5].(page 194)
(2) Fan board failure Refer to IX [4] -6- (2) [6].(page 194)
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