What does F023 mean on an Atlas Copco GA VSD air compressor?
Short answer: Drive overvoltage. If your Atlas Copco GA VSD (Elektronikon with integrated drive) is showing F023, the controller has logged a specific, documented condition. This page covers what it means, what causes it, what you can safely fix yourself, and when — and why — it takes a technician.
What exactly is the machine telling you?
Incoming mains voltage is above the drive's limits, or the drive saw a voltage spike/regeneration event.
Which machines show this?
Atlas Copco GA VSD variable-speed rotary screws where the Elektronikon works alongside an integrated frequency drive. On these packages, drive-side problems surface as F-codes — F020 for overcurrent, F023 for overvoltage, F006/F011 for inverter or motor overtemperature — displayed by the controller rather than buried in the drive. The compressor-side messages stay the familiar Elektronikon style; the F-codes specifically mean the drive saw something wrong electrically or thermally. Practical tip: note whether an F-code lands at the same moment as utility events or big equipment switching nearby — a pattern in the timestamps usually separates a plant power-quality problem from a genuine drive or airend fault, and never open the drive cabinet yourself.
What causes it?
- Incoming mains voltage above the drive's limits
- A voltage spike or regeneration event — often when large equipment nearby switches
Can you fix it yourself?
No — staff can log when trips coincide with utility events and restart after conditions stabilize, but there is nothing to fix on the machine itself in-house.
Step by step — what to try, in order:
- Note whether trips coincide with utility events or large equipment switching nearby
- Try one clean restart after conditions stabilize
- Have facility supply voltage logged over a shift if trips repeat
When do you need a technician — and why?
Persistent overvoltage needs an electrician to log the facility supply over a shift and verify the drive's protection circuits — cabinet work with stored lethal voltage.
If it does come to a service call and you're in Nashville, TN or Birmingham, AL, we maintain independently compiled lists of local companies that service industrial air compressors — real businesses with verified contact information, none of whom paid to be listed.
Related questions
What does F023 mean on an Atlas Copco GA VSD (Elektronikon with integrated drive)?
Drive overvoltage. Incoming mains voltage is above the drive's limits, or the drive saw a voltage spike/regeneration event.
Can I fix F023 on an Atlas Copco GA VSD (Elektronikon with integrated drive) myself?
No — staff can log when trips coincide with utility events and restart after conditions stabilize, but there is nothing to fix on the machine itself in-house.
When does F023 on an Atlas Copco GA VSD (Elektronikon with integrated drive) need a technician?
Persistent overvoltage needs an electrician to log the facility supply over a shift and verify the drive's protection circuits — cabinet work with stored lethal voltage. Persistent overvoltage faults require an electrician to verify supply stability and the drive's protection circuits.
Verified against service documentation: Atlas Copco GA VSD (Elektronikon with integrated drive) documentation for F023 (aircompressorservices.com)