Mitsubishi Electric PUHY-M200YNW-A1 Service Handbook page 221

[7-7 Error Code Definitions and Solutions: Codes [5000 - 5999] ]
7-7-12 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
Cause
(1) ACCT sensor disconnection
(2) ACCT sensor failure
(3) Inverter failure
(4) Compressor failure
Hydro unit
Cause
(1) ACCT sensor failure
(2) Inverter failure
(3) Pump failure
For inverter-related error codes, refer to the following page(s). [8-10 Troubleshooting Inverter Problems]
58
- chapter 7
Check method and remedy
Check the connector CNCT2 on the INV board for proper connection.
Check the ACCT for proper connection.
Refer to the following page(s).
[8-10-18 Simple Check on Inverter Circuit Components]
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]
Refer to the following page(s).
[8-10-3 Checking the Compressor for Ground Fault and Coil Resis-
tance Problems]
Check method and remedy
Refer to the following page(s).
[8-10-18 Simple Check on Inverter Circuit Components]
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]
Refer to the following page(s).
[8-10-11 Checking the Pump Motor for Ground Fault and Coil Resis-
tance Problems]
BS_07_E