As we head into the colder months, HVACR technicians need to understand the fundamentals of defrost control board operation. While there are many types of defrost control boards on the market, they ...
A split system heat pump's defrost sensor is used to detect ice buildup on the heat pump's outdoor coil. When ice builds up on the coil, it reduces the heat pump's ability to transfer heat, which can ...
Nelson Mechanical finds the reason for a crippling error code in a heat pump system that was driving the homeowner nuts. I love working with copper pipes and fittings ...
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