What does F006 / F011 mean on an Atlas Copco GA VSD air compressor?
Short answer: Inverter or motor overtemperature. If your Atlas Copco GA VSD (Elektronikon with integrated drive) is showing F006 / F011, 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?
The drive module or motor windings are running too hot — usually a cooling problem (dirty coolers/fans, blocked airflow, high ambient) rather than a failed drive.
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?
- Dirty coolers or blocked airflow starving the drive module or motor of cooling
- Cabinet fans not running or blowing the wrong way
- High ambient temperature at the intake
- Thermistor wiring or drive fault when it trips with everything clean and cool
Can you fix it yourself?
Often, yes — this is usually a cooling problem, and cleaning cooler faces, restoring cabinet fan airflow, and lowering ambient fixes it.
Step by step — what to try, in order:
- Let the unit cool down fully
- Clean cooler faces and check cabinet fan operation and airflow direction
- Check and reduce ambient temperature at the intake if possible
- Restart and watch temperatures on the controller
When do you need a technician — and why?
If it still trips with clean coolers, working fans, and normal ambient, the thermistor circuit or the drive itself needs diagnosis inside a cabinet that holds charge after power-off.
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 F006 / F011 mean on an Atlas Copco GA VSD (Elektronikon with integrated drive)?
Inverter or motor overtemperature. The drive module or motor windings are running too hot — usually a cooling problem (dirty coolers/fans, blocked airflow, high ambient) rather than a failed drive.
Can I fix F006 / F011 on an Atlas Copco GA VSD (Elektronikon with integrated drive) myself?
Often, yes — this is usually a cooling problem, and cleaning cooler faces, restoring cabinet fan airflow, and lowering ambient fixes it.
When does F006 / F011 on an Atlas Copco GA VSD (Elektronikon with integrated drive) need a technician?
If it still trips with clean coolers, working fans, and normal ambient, the thermistor circuit or the drive itself needs diagnosis inside a cabinet that holds charge after power-off. If it trips again with clean coolers, working fans and normal ambient, the thermistor wiring or drive needs professional diagnosis.
Verified against service documentation: Atlas Copco GA VSD (Elektronikon with integrated drive) documentation for F006 / F011 (aircompressorservices.com)