Nothing fills a person with dread quite like a misbehaving refrigerator, whether the appliance is humming but not cooling or has started mysteriously leaking water. Buying a new fridge is expensive, ...

Cleaning the coils on rooftop units may seem mundane, but it’s an important job that pays off for your customers in more efficient operation and longer living equipment. And, any job that’s worth ...

Knowing the sequence of operation for this type of starting relay can help you diagnose, confirm, or rule out certain service problems. Potential starting relays consist of a high resistance coil and ...

David Yuill received funding from the American Society of Heating, Refrigerating, and Air-conditioning Engineers to conduct this study, under Research Project 1705. He is affiliated with ASHRAE. I ...