What does the service pictograph (screen d.06) mean on a Quincy QGS?
Short answer: Service timer interval reached. If your Quincy QGS 20-30 (INFOLOGIC controller) is showing Service warning (service pictograph, screen d.06), 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 interval and the controller is telling the operator scheduled maintenance is due. The alarm LED lights and the service symbol is shown; screen d.06 displays the timer hours.
Which machines show this?
Quincy QGS 20-30 hp rotary screw compressors with the compact INFOLOGIC controller, including tank-mounted and integrated-dryer variants. There are no numbered fault codes on this controller: it communicates with LEDs and pictographs — a flashing temperature symbol, a motor symbol, an e-stop symbol, a service wrench — plus small scrollable screens (like d.06 for service-timer hours). Identifying a fault means reading which pictograph is lit or flashing and whether the alarm LED is steady (warning) or flashing (shutdown). Warnings clear themselves when the condition passes; shutdowns need the cause corrected and the unit reset. Larger QGS machines from 40 hp up use the different Airlogic2 controller instead.
What causes it?
- The service timer passed its programmed interval — scheduled maintenance is due
- This is a reminder, not a malfunction: screen d.06 shows the timer hours
Can you fix it yourself?
Yes — stop the unit, switch off the voltage, work through the preventive maintenance items for that interval (longer intervals include all shorter-interval work), and reset the timer.
Step by step — what to try, in order:
- Scroll to screen d.06 to read the service timer hours
- Stop the compressor and switch off the voltage
- Carry out the service actions from the preventive maintenance schedule for that interval — longer intervals include all shorter-interval items
- Reset the service timer after servicing
When do you need a technician — and why?
Consumables like filters and fluid are within reach of plant staff, but the deeper interval items — and knowing which interval applies — are what the Quincy distributor is for.
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 pictograph, screen d.06) mean on a Quincy QGS 20-30 (INFOLOGIC controller)?
Service timer interval reached. The service timer passed its programmed interval and the controller is telling the operator scheduled maintenance is due. The alarm LED lights and the service symbol is shown; screen d.06 displays the timer hours.
Can I fix Service warning (service pictograph, screen d.06) on a Quincy QGS 20-30 (INFOLOGIC controller) myself?
Yes — stop the unit, switch off the voltage, work through the preventive maintenance items for that interval (longer intervals include all shorter-interval work), and reset the timer.
When does Service warning (service pictograph, screen d.06) on a Quincy QGS 20-30 (INFOLOGIC controller) need a technician?
Consumables like filters and fluid are within reach of plant staff, but the deeper interval items — and knowing which interval applies — are what the Quincy distributor is for. Call your Quincy distributor for service items beyond consumable filter and fluid changes, or if you are unsure which interval applies.
Verified against service documentation: Quincy QGS 20-30 (INFOLOGIC controller) documentation for Service warning (service pictograph, screen d.06) (airenergy.com)