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An AC unit with hidden issues that cause recurring failures after a repair.

What Causes an HVAC to Underperform After Repairs?

by Trey Eller | Apr 9, 2026April 30th, 2026 | HVAC Maintenance

If your car’s “check engine” light came back on a week after a repair, you’d know the real problem wasn’t fixed. The same logic...

A technician repairs a leaking ice machine as water pools on the floor.

How to Fix a Leaking Ice Machine: A DIY Guide

by Trey Eller | Apr 8, 2026April 23rd, 2026 | HVAC Maintenance

A puddle on the floor is a major headache. For a business, a leaking ice machine is a serious liability—a slip-and-fall hazard that can cause costly...

Technician performing routine maintenance on a commercial rooftop AC unit.

Commercial Rooftop AC Unit: A Complete Guide

by Trey Eller | Apr 8, 2026April 25th, 2026 | HVAC Maintenance

Are your business’s energy bills creeping up? Before you blame rising utility rates, the real culprit might be right on your roof. A neglected...

Technician performing AC repair on an outdoor air conditioner unit.

5 Signs You Need Air Conditioner Repair Now

by Trey Eller | Mar 16, 2026March 31st, 2026 | HVAC Maintenance

Heard the one about cranking your thermostat to 55 degrees to cool your house faster? It’s a popular tip, but it’s also a myth that can waste your...

A technician inspects a furnace to detect a cracked heat exchanger and prevent a CO leak.

Cracked Heat Exchanger: A Homeowner’s Safety Guide

by Trey Eller | Mar 12, 2026March 30th, 2026 | HVAC Maintenance

Have you noticed strange smells when your furnace kicks on, or maybe some black soot collecting around the unit? Don’t ignore these signs....

Technician inspecting a commercial refrigerator using a quarterly maintenance checklist.

Your Quarterly Refrigeration Maintenance Checklist

by Trey Eller | Mar 12, 2026April 20th, 2026 | HVAC Maintenance

There’s nothing worse than that sinking feeling when you find a silent walk-in cooler, with thousands of dollars of inventory at risk. Emergency...

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Our certified technicians at QRC are equipped to handle all of your commercial and refrigeration HVAC needs. We also offer residential HVAC services in Winston-Salem, North Carolina. Contact us today to learn more!