Mitsubishi Electric PURY-EP200 Service Handbook page 218

[ IX Troubleshooting ]
1. Error Code
4250
ACCT overcurrent (H/W detection) (Detail code 102)
DCCT overcurrent (H/W detection) (Detail code 103)
Instantaneous overcurrent (Detail code 106)
Overcurrent (Detail code 107)
2. Error definition and error detection method
Overcurrent 94Apeak or 22Arm and above is detected (P250, EP200 models) OR 94Apeak or 35Arm and above is de-
tected (P300-P400, EP250-EP300 model and above) by the current sensor.
3. Cause, check method and remedy
(1) Inverter output related
Refer to section -7- "Inverter" under part [4] Troubleshooting Principal Parts for error codes related to the inverter.(page 283)
1. Error Code
4250
4255
Short-circuited IPM/Ground fault (Detail code 104)
2. Error definition and error detection method
When IPM/IGBT short damage or grounding on the load side is detected just before starting the inverter.
3. Cause, check method and remedy
In the case of 4250
(1) Grounding fault compressor
(2) Inverter output related
In the case of 4255
(1) Grounding fault of fan motor
(2) Fan board failure
Refer to section -7- "Inverter" under part [4] Troubleshooting Principal Parts for error codes related to the inverter.(page 283)
HWE0713A
Cause
Cause
Cause
Check method and remedy
Refer to IX [4] -7- (2) [1]-[4]. (page 285)
Check the IGBT module resistance value of the in-
verter board, if no problems are found.
(Refer to the Trouble shooting for IGBT module)
Check method and remedy
Refer to IX [4] -7- (2) [2].(page 285)
Refer to IX [4] -7- (2) [1]-[4].(page 285)
Check method and remedy
Refer to IX [4] -7- (2) [5].(page 286)
Refer to IX [4] -7- (2) [6].(page 287)
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