Mitsubishi Electric City Multi PFAV-P500VMH-E, Service Handbook

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[
X
Troubleshooting ]
- 117 -
HWE07150 GB
1. Error Code
Abnormal bus voltage rise (Detail code 109)
2. Error definition and error detection method
If Vdc 830V is detected during inverter operation.
3. Cause, check method and remedy
(1) Different voltage connection
Check the power supply voltage on the power supply terminal block (TB1).
(2) INV board failure
If the problem recurs, replace the INV board.
In the case of 4220: INV board
In the case of 4225: Fan board
Refer to section - 6 - "Inverter" under part [4] "Trouble shooting principal parts" for error codes related to the
inverter.(page 172)
1. Error Code
Logic error (Detail code 111)
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
In the case of 4225
Refer to section - 6 - "Inverter" under part [4] "Trouble shooting principal parts" for error codes related to the
inverter.(page 172)
4220
4225
4220
4225
Cause Check method and remedy
(1) External noise
(2) INV board failure Refer to
X
[4] - 6 - (2) [1].
Cause Check method and remedy
(1) External noise
(2) Fan board failure Refer to
X
[4] - 6 - (2) [6].