Error Code [4220] Detail Code 110; Error Codes [4220, 4225, 4226] Detail Code 111, 112 - Mitsubishi Electric PURY-P200YLM-A(1) Service Handbook

[7-6 Error Code Definitions and Solutions: Codes [4000 - 4999] ]
7-6-10

Error Code [4220] Detail Code 110

1. Error code definition
VDC error (Detail code 110)
2. Error definition and error detection method
BUS voltage error When Vdc is equal to or greater than 814 volts (hardware detection)
If a voltage drop of the 12 V power supply (CNRY) of the relay on the INV board is detected (INV30YC only)
3. Cause, check method and remedy
Details of 4220 error: See No. 108 and 109.
Also see error details No. 124 of 4220 error (applicable to INV30YC only).
For inverter-related error codes, refer to the following page(s). [8-10 Troubleshooting Inverter Problems](page 337)
7-6-11

Error Codes [4220, 4225, 4226] Detail Code 111, 112

1. Error code definition
Logic error (Detail code 111, 112)
2. Error definition and error detection method
H/W error
If only the H/W error logic circuit operates, and no identifiable error is detected.
3. Cause, Check method and remedy
In the case of 4220
Cause
(1) External noise
(2) INV board failure
In the case of 4225 and 4226
Cause
(1) External noise
(2) Fan board failure
For inverter-related error codes, refer to the following page(s). [8-10 Troubleshooting Inverter Problems](page 337)
HWE1314A
Check method and remedy
Refer to the following page(s). [8-10-2 Checking the Inverter Board Error Detection
Circuit](page 339)
Check method and remedy
Refer to the following page(s).
[8-10-8 Checking the Fan Board Error Detection Circuit at No Load](page 341)
[8-10-9 Checking the Fan Inverter for Damage at No Load](page 342)
[8-10-10 Checking the Fan Inverter for Damage with Load](page 343)
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