Why Does My Heat Pump Need a Defrost Cycle?

Heat pumps are a great way to keep your Manhattan, KS home warm and cool in one convenient unit. They also offer homeowners a great deal of efficiency. As part of their normal operation, heat pumps run a defrost cycle. Many of our customers have been asking us what the purpose of that cycle is so we thought it would be helpful if we posted a quick explanation. At Standard Plumbing, we offer complete plumbing and heating services in Manhattan, KS. If you have any questions about your heating system or your plumbing, we would love to answer them. Contact Standard Plumbing today!

How Heat Pumps Work

In order to understand why there’s a defrost cycle on your heat pump we need to explain how heat pumps work. In heating mode, your heat pump extracts heat out of the outside air. It does this using a refrigerant, like Freon, that it circulates through a series of coils in your outside condensing unit. The outside unit blows air over the coils where the refrigerant absorbs heat from the air. The heat is circulated into your home where your heat pump extracts that heat using another series of coils and blows the hot air through your home.

Why Your Heat Pump Has A Defrost Cycle

When you take a cool glass of water outside on a hot day, you’ll notice that condensation starts to form on the outside. This happens when hot air cools rapidly and loses its moisture. In heating mode, your heat pump’s coils pulls heat out of the air very quickly. As that air cools quickly it loses its moisture onto the coils. When the air outside is very cold, that moisture freezes onto the coils. This obviously keeps your heat pump from being able to operate properly.

The defrost cycle is intended to remove that icy build-up from your coils so that your heat pump can continue to heat your home.

If you need heat pump repairs in Manhattan KS, make sure that you call Standard Plumbing.

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