Technical Alarms Check Repair and Troubleshooting
5 - 18 046-006272-00 A7™ Service Manual
Auto Ventilation is
Non-Functional
High
Manual Only. But the
Auto/Manual switch
is in Auto position.
1. Place the Auto/Manual switch in Manual position.
ACGO Failure Med
The status of the
ACGO switch is
incorrect.
1. Check whether the drive gas pressure is within the normal range. If
not, ensure that the drive gas pressure is within the normal range.
Then turn on or off the ACGO switch.
2. If the problem persists, replace the ACGO switch.
3. If the problem persists, replace the CPU board.
4. If the problem persists, replace the VCM
Electronic ACGO
Undetected
Low
No electronic ACGO
is detected.
1. Check whether an electronic ACGO module is configured for the
machine.
2. If so, check the connections between the ACGO module and the
CPU board, and between the ACGO module and the VCM.
3. Replace the electronic ACGO module when necessary.
4. Replace the CPU board or VCM when necessary.
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