How do I clear the service timer warning on an Atlas Copco compressor?
Short answer: Service timer exceeded. If your Atlas Copco GA series (Elektronikon Mk 5) is showing Service warning (service timer), 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 service timer passed its programmed value, telling the operator to carry out the service actions belonging to that service plan. The service sign on the control panel lights when service is needed.
Which machines show this?
Atlas Copco GA-series rotary screw compressors fitted with the Elektronikon Mk 5 controller — the graphic-display generation that replaced the Elektronikon II era units. The Mk 5 shows shutdowns and shutdown warnings as on-screen messages with the measured value and the programmed level, lights a general alarm LED for warnings, and clears alarms through a confirm button under a reset icon. Warnings disappear on their own once the condition resolves; shutdowns latch until the problem is fixed and reset. Practical tip: the manual is blunt that repeatedly resetting a shutdown without remedying the cause can damage the machine — write down the tripped value first, fix, then reset once.
What causes it?
- The service timer simply reached its programmed interval — this is a reminder, not a malfunction
- Maintenance actions for the due plan not yet carried out
Can you fix it yourself?
Yes, for the routine plans — filters and oil are normal in-house work, and the timer is reset after the job is done, never before.
Step by step — what to try, in order:
- Open the Service menu to see which service plan is due
- Carry out the plan's maintenance actions (filters, oil, etc. per your unit's schedule)
- Reset the service timer only after the work is done
When do you need a technician — and why?
The bigger plans cover element and valve overhauls; those need special tooling and factory procedures, which is why they go to an authorized Atlas Copco service provider.
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 Service warning (service timer) mean on an Atlas Copco GA series (Elektronikon Mk 5)?
Service timer exceeded. The service timer passed its programmed value, telling the operator to carry out the service actions belonging to that service plan. The service sign on the control panel lights when service is needed.
Can I fix Service warning (service timer) on an Atlas Copco GA series (Elektronikon Mk 5) myself?
Yes, for the routine plans — filters and oil are normal in-house work, and the timer is reset after the job is done, never before.
When does Service warning (service timer) on an Atlas Copco GA series (Elektronikon Mk 5) need a technician?
The bigger plans cover element and valve overhauls; those need special tooling and factory procedures, which is why they go to an authorized Atlas Copco service provider. Larger service plans (element, valve overhauls) should be done by an authorized Atlas Copco service provider.
Verified against service documentation: Atlas Copco GA series (Elektronikon Mk 5) documentation for Service warning (service timer) (manualslib.com)