Technical

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Dirty coils still hurt performance, raise operating pressures, and contribute to costly failures, but cleaning them improperly can create a whole new set of problems. 

A magnet, a thermometer, and the right pressure readings can tell you everything about a failing reversing valve. 

Moisture problems show up everywhere in HVAC systems. Knowing how humidity behaves in air can make troubleshooting condensation and comfort issues far easier.  

Inverter-driven HVAC systems deliver 30–50% energy savings — but their sensitive electronics are highly vulnerable to voltage instability.

The shift to A2L refrigerants may seem daunting, but with proper tools, training, and safety know-how, contractors can handle the change with confidence.  

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. 

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.

Airflow diagnostics made simple—discover how to ensure peak performance in HVAC systems.