Error Code [4250] Detail Codes 103, 106, And 107 (Tlmu) - Mitsubishi Electric R410A Service Handbook

[7-5 Error Code Definitions and Solutions: Codes [4000 - 4999] ]
7-5-24

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

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
When a current above the specified value is detected by the electric current sensor.
Refer to the relevant pages for the details of model names and the specified values. [7-1-1 Inverter Protection Level Ta-
ble](page 155)
3. Cause, check method and remedy
Cause
(1) Inverter output
related
For inverter-related error codes, refer to the following page(s). [8-9 Troubleshooting Inverter Problems (TLMU)](page 264)
HWE14080
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 267)
[8-9-5 Checking the Inverter for Damage during Compressor Operation](page 268)
[8-9-10 Checking the Installation Conditions](page 270)
Check the IGBT module resistance value of the INV board, if no problems are found.
[8-9-16 Troubleshooting Problems with IGBT Module](page 274)
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Check method and remedy
GB