Error Codes [4250, 4255, 4256] Detail Code 104 - Mitsubishi Electric PUHY-P200 Service Handbook
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- Service handbook (355 pages) ,
- Service handbook (182 pages) ,
- Service handbook (40 pages)
Table of Contents
[7-6 Error Code Definitions and Solutions: Codes [4000 - 4999] ]
7-6-19
Error Codes [4250, 4255, 4256] Detail Code 104
1. Error code definition
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
Cause
(1)
Grounding fault compressor
(2)
Inverter output related
In the case of 4255 and 4256
Cause
(1)
Grounding fault of fan motor
(2)
Fan board failure
For inverter-related error codes, refer to the following page(s). [8-9 Troubleshooting Inverter Problems](page 264)
HWE14040
Check method and remedy
Refer to the following page(s).
[8-9-3 Checking the Compressor for Ground Fault and Coil Resistance
Problems](page 266)
Refer to the following page(s).
[8-9-2 Checking the Inverter Board Error Detection Circuit](page 266)
[8-9-3 Checking the Compressor for Ground Fault and Coil Resistance
Problems](page 266)
[8-9-4 Checking the Inverter for Damage at No-Load](page 266)
[8-9-5 Checking the Inverter for Damage during Compressor Opera-
tion](page 267)
[8-9-11 Checking the Installation Conditions](page 271)
Check method and remedy
Refer to the following page(s).
[8-9-7 Checking the Fan Motor for Ground Fault and Coil Resistance
Problems](page 269)
Refer to the following page(s).
[8-9-8 Checking the Fan Board Error Detection Circuit at No Load](page
269)
[8-9-9 Checking the Fan Inverter for Damage at No Load](page 270)
[8-9-10 Checking the Fan Inverter for Damage with Load](page 271)
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