Open-Circuited Ipm/Loose Acct Connector (Detail Code 119); Faulty Acct Wiring (Detail Code 120) - Mitsubishi Electric PURY-(E)P200 Service Handbook

[ IX Troubleshooting ]
1. Error Code
5301

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) Inverter output wiring problem
(2) Inverter failure
(3) Compressor failure
Refer to section - 7 -"Inverter" under part [4] "Trouble shootiong principal parts" for error codes related to the
inverter.(page 271)
1. Error Code
5301

Faulty ACCT wiring (Detail code 120)

2. Error definition and error detection method
Presence of target current cannot be detected during the self-diagnostic operation immediately before startup. (Detection of
improperly mounted ACCT sensor)
3. Cause, check method and remedy
Cause
(1) Inverter output wiring problem
(2) Inverter failure
(3) Compressor failure
Refer to section - 7 - "Inverter" under part [4] "Trouble shooting principal parts" for error codes related to the
inverter.(page 271)
HWE07130
Check method and remedy
Check output wiring connections.
Confirm that the U- and W-phase output cables are put through CT12
and CT22 on the inverter board respectively.
Refer to 9 [4]-7-(2) [3], [4].(page 274)
Refer to 9 [4]-7-(2) [2].(page 273)
Check method and remedy
Check output wiring connections.
Confirm that the U- and W-phase output cables are put through CT12
and CT22 on the inverter board respectively.
Refer to 9 [4]-7-(2) [3], [4].(page 274)
Refer to 9 [4]-7-(2) [2].(page 273)
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