Service and Maintenance

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A reversing valve can fail 3 ways: stuck in position, defective/displaced, or internal leak. 

This technical primer breaks down defrost control board operation, key components, and practical troubleshooting steps every HVACR technician should know. 

Heat pumps may be leading sales, but dual fuel systems are winning on trust, redundancy, and real-world reliability. 

Individual energy-saving habits help, but buildings consume far more energy. Here’s what really drives efficiency.

When replacing refrigeration components, wiring may also need updating. Techs must choose the correct wire gauge for the amperage, as well as decide between solid or stranded wire. 

Modern heat pumps are engineered for extreme cold, yet misconceptions persist. Field data and proper system design are changing how contractors approach winter heating solutions.

Many commercial buildings still rely on aging HVAC systems. A data-driven approach to audits, maintenance, and capital planning can unlock efficiency gains without a full overhaul.

If defrost isn’t working, something in the chain is broken. This step-by-step approach shows you exactly where to look and what to test.

Proactive maintenance, smart scheduling, and open communication let technicians service busy commercial kitchens efficiently, minimizing disruption and keeping customers satisfied.

Rooftop service will never be risk-free, but new tools are helping to make unnecessary climbs a thing of the past.