Mitsubishi Electric PURY-HP144, Service Handbook

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[7-7 Error Code Definitions and Solutions: Codes [5000 - 5999] ]
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7-7-9 Error Code [5301] Detail Code 117
1. Error code definition
ACCT sensor circuit fault (Detail code 117)
2. Error definition and error detection method
When an error value is detected with the ACCT detection circuit just before the inverter starts
3. Cause, check method and remedy
For inverter-related error codes, refer to the following page(s). [8-10 Troubleshooting Inverter Problems]
7-7-10 Error Code [5301] Detail Code 119
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
For inverter-related error codes, refer to the following page(s). [8-10 Troubleshooting Inverter Problems]
Cause Check method and remedy
(1) INV board failure Refer to the following page(s).
[8-10-2 Checking the Inverter Board Error Detection Circuit]
[8-10-4 Checking the Inverter for Damage at No-Load]
[8-10-5 Checking the Inverter for Damage during Compressor Operation]
(2) Compressor failure Refer to the following page(s).
[8-10-3 Checking the Compressor for Ground Fault and Coil Resistance Problems]
Cause Check method and remedy
(1) ACCT sensor disconnection Check the connector CNCT2 on the INV board for proper connection.
Check the ACCT for proper connection.
(2) ACCT sensor failure Refer to the following page(s).
[8-10-13 Simple Check on Inverter Circuit Components]
(3) Inverter failure Refer to the following page(s).
[8-10-4 Checking the Inverter for Damage at No-Load]
[8-10-5 Checking the Inverter for Damage during Compressor Oper-
ation]
(4) Compressor failure Refer to the following page(s).
[8-10-3 Checking the Compressor for Ground Fault and Coil Resis-
tance Problems]