Error Code [5301] Detail Code 118 (Tkmu); Error Code [5301] Detail Code 119 (Tkmu) - Mitsubishi Electric PURY-HP72 Service Handbook

[7-7 Error Code Definitions and Solutions: Codes [5000 - 5999] ]
7-7-12

Error Code [5301] Detail Code 118 (TKMU)

1. Error code definition
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). [8-10 Troubleshooting Inverter Problems (TKMU)](page 288)
7-7-13

Error Code [5301] Detail Code 119 (TKMU)

1. Error code definition
Open-circuited IPM/Loose ACCT connector (Detail code 119)
2. Error definition and error detection method
Presence of enough current cannot be detected during the self-diagnostic operation immediately before inverter startup.
3. Cause, check method and remedy
Cause
(1) ACCT sensor disconnection
(2) ACCT sensor failure
(3) Inverter failure
(4) Compressor failure
For inverter-related error codes, refer to the following page(s). [8-10 Troubleshooting Inverter Problems (TKMU)](page 288)
HWE13080
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).
[8-10-2 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)
Replace the DCCT sensor.
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 Troubleshooting Inverter Problems (TKMU)](page 288)
Check method and remedy
Check the connection of the connector (CNCT2) on the INV board.
Check for proper mounting of ACCT.
Refer to the following page(s).
[8-10-13 Simple Check on Inverter Circuit Components](page 295)
Refer to the following page(s).
[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)
Refer to the following page(s).
[8-10-3 Checking the Compressor for Ground Fault and Coil Resistance Prob-
lems](page 290)
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