Mitsubishi Electric PURY-M200YNW-A1 Service Handbook page 230

[7-7 Error Code Definitions and Solutions: Codes [5000 - 5999] ]
7-7-13 Error Code [5301, 5305, 5306] 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
[Outdoor unit]
Cause
(1) ACCT sensor disconnection
(2) ACCT sensor failure
(3) Inverter failure
(4) Compressor failure
[HBC]
Cause
(1) Pump inverter board failure
(2) Pump failure
For inverter-related error codes, refer to the following page(s). [8-10 Troubleshooting Inverter Problems]
BS_07_M
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).
[8-10-12 Checking the Error-Detection Circuit on the Pump INV
Board (Without load)]
[8-10-13 Checking the Pump INV Board for Damage (Without load)]
[8-10-14 Checking the Pump INV Board for Damage (During pump
operation)]
Refer to the following page(s).
[8-9-4 Water Pump Control]
[8-10-11 Checking the Pump Motor for Ground Fault and Coil Resis-
tance Problems]
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