Error Code [5301] Detail Code 115 (Tlmu) - Mitsubishi Electric R410A Service Handbook

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

Error Code [5301] Detail Code 115 (TLMU)

1. Error code definition
ACCT sensor fault (Detail code 115)
2. Error definition and error detection method
When the formula "output current < 2 Arms" remains satisfied for 10 seconds while the inverter is in operation.
3. Cause, check method and remedy
P72, P96, P120, P144 models
Cause
(1) Inverter open output phase
(2) Compressor failure
(3) INV board failure
P168 model
Cause
(1) Inverter open output phase
(2) Compressor failure
(3) INV board failure
(4) Contact failure
(5) ACCT sensor 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 the output wiring connections.
Refer to the following page(s).
[8-9-3 Checking the Compressor for Ground Fault and Coil Resistance Prob-
lems](page 266)
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)
Check method and remedy
Check the output wiring connections.
Refer to the following page(s).
[8-9-3 Checking the Compressor for Ground Fault and Coil Resistance Prob-
lems](page 266)
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)
Check the connection of the connector (CNCT2) on the INV boardINV board.
Refer to the following page(s).
[8-9-13 Simple Check on Inverter Circuit Components](page 272)
- 195 - GB