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Error Code [5301] Detail Code 115 (Tkmu); Error Code [5301] Detail Code 115 (Ykmu) - Mitsubishi Electric PURY-HP72 Service Handbook

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[7-7 Error Code Definitions and Solutions: Codes [5000 - 5999] ]
7-7-8

Error Code [5301] Detail Code 115 (TKMU)

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
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). [8-10 Troubleshooting Inverter Problems (TKMU)](page 288)
7-7-9

Error Code [5301] Detail Code 115 (YKMU)

1. Error code definition
ACCT sensor fault (Detail code 115)
2. Error definition and error detection method
When the formula "output current < 1.5 Arms" remains satisfied for 10 seconds while the inverter is in operation.
3. Cause, check method and remedy
Cause
(1)
Inverter open output phase
(2)
Compressor failure
(3)
INV board failure
For inverter-related error codes, refer to the following page(s). [8-11 Troubleshooting Inverter Problems (YKMU)](page 298)
HWE13080
Check method and remedy
Check the output wiring connections.
Refer to the following page(s).
[8-10-3 Checking the Compressor for Ground Fault and Coil Resistance Prob-
lems](page 290)
Refer to the following page(s).
[8-10-2 Checking the Inverter Board Error Detection Circuit](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)
Check the connection of the connector (CNCT2) on the INV boardINV board.
Refer to the following page(s).
[8-10-13 Simple Check on Inverter Circuit Components](page 295)
Check method and remedy
Check the output wiring connections.
Refer to the following page(s).
[8-11-3 Checking the Compressor for Ground Fault and Coil Resistance Prob-
lems](page 300)
Refer to the following page(s).
[8-11-2 Checking the Inverter Board Error Detection Circuit](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)
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