Table of Contents
[7-7 Error Code Definitions and Solutions: Codes [5000 - 5999] ]
7-7-11
Error Code [5301] Detail Code 120
1. Error code definition
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
For inverter-related error codes, refer to the following page(s). [8-10 Troubleshooting Inverter Problems](page 337)
7-7-12
Error Code [5301] Detail Code 127
1. Error code definition
DCL electric current circuit error (Detail code 127)(outdoor unit)
2. Error definition and error detection method
When an abnormal value in the DCL electric current sensor detection circuit is detected
3. Cause, check method and remedy
(1)
Contact failure
(2)
Incorrect installation
(3)
INV board failure
For inverter-related error codes, refer to the following page(s). [8-10 Troubleshooting Inverter Problems](page 337)
HWE1314A
Cause
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 INV board respectively.
Refer to the following page(s).
[8-10-4 Checking the Inverter for Damage at No-Load](page 339)
[8-10-5 Checking the Inverter for Damage during Compressor Oper-
ation](page 340)
Refer to the following page(s).
[8-10-3 Checking the Compressor for Ground Fault and Coil Resis-
tance Problems](page 339)
Check method and remedy
Check the wiring between CNCT4A and CNCT4B.
Check the wiring on the SC-L terminal.
If the problem persists after restart operation, replace the in-
verter board.
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