Error Code [5301] Detail Code 118 (Tlmu) - Mitsubishi Electric R410A Service Handbook

[7-6 Error Code Definitions and Solutions: Codes [5000 - 5999] ]
7-6-10

Error Code [5301] Detail Code 118 (TLMU)

1. Error code definition
(P168 model only)
DCCT sensor circuit fault (Detail code118)
2. Error definition and error detection method
When an error value is detected with the DCCT detection circuit just before the inverter starts
3. Cause, check method and remedy
Cause
(1) Contact failure
(2) INV board failure
(3) DCCT sensor failure
(4) Compressor failure
(5) Inverter failure
For inverter-related error codes, refer to the following page(s). [8-9 Troubleshooting Inverter Problems (TLMU)](page 264)
HWE14080
Check method and remedy
Check for good contact of the INV board connector CNCT and the connector on the
DCCT side.
Refer to the following page(s).
[8-9-2 Checking the Inverter Board Error Detection Circuit](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)
Replace the DCCT sensor.
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 Troubleshooting Inverter Problems (TLMU)](page 264)
- 198 - GB