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Error Code [4250] Detail Codes 103, 106, And 107 (Tkmu); Error Code [4250] Detail Codes 106 And 107 (Ykmu) - Mitsubishi Electric PURY-HP72 Service Handbook

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[7-6 Error Code Definitions and Solutions: Codes [4000 - 4999] ]
7-6-23

Error Code [4250] Detail Codes 103, 106, and 107 (TKMU)

1. Error code definition
DCCT overcurrent (H/W detection) (Detail code 103)
Instantaneous overcurrent (Detail code 106)
Overcurrent (effective value) (Detail code 107)
2. Error definition and error detection method
Overcurrent 106 Apeak or 64 Arms and above is detected by the current sensor.
3. Cause, check method and remedy
Cause
(1)
Inverter output related
For inverter-related error codes, refer to the following page(s). [8-10 Troubleshooting Inverter Problems (TKMU)](page 288)
7-6-24

Error Code [4250] Detail Codes 106 and 107 (YKMU)

1. Error code definition
Instantaneous overcurrent (Detail code 106)
Overcurrent (effective value) (Detail code 107)
2. Error definition and error detection method
Overcurrent 56 Apeak or 33 Arms and above is detected by the current sensor.
3. Cause, check method and remedy
Cause
(1)
Inverter output
related
For inverter-related error codes, refer to the following page(s). [8-11 Troubleshooting Inverter Problems (YKMU)](page 298)
HWE13080
Refer to the following page(s).
[8-10-2 Checking the Inverter Board Error Detection Circuit](page 290)
[8-10-3 Checking the Compressor for Ground Fault and Coil Resistance Prob-
lems](page 290)
[8-10-4 Checking the Inverter for Damage at No-Load](page 290)
[8-10-5 Checking the Inverter for Damage during Compressor Operation](page 291)
[8-10-10 Checking the Installation Conditions](page 293)
Check method and remedy
Refer to the following page(s).
[8-11-2 Checking the Inverter Board Error Detection Circuit](page 300)
[8-11-3 Checking the Compressor for Ground Fault and Coil Resistance Problems](page
300)
[8-11-4 Checking the Inverter for Damage at No-Load](page 300)
[8-11-5 Checking the Inverter for Damage during Compressor Operation](page 301)
[8-11-10 Checking the Installation Conditions](page 303)
Check the IGBT module resistance value of the INV board, if no problems are found.
[8-11-14 Troubleshooting Problems with IGBT Module](page 305)
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Check method and remedy
GB

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