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.

Part 1 in this series covered defrost cycle problems in heat pumps. Now, let's discuss the second major winter issue: heat pumps stuck in one mode. The customer calls and says the system won't switch ...

While heat pump problems are far outweighed by their many benefits, it is well worth getting to know where homeowners often run into issues with both air source heat pumps as well as ground source ...

is a senior science reporter covering energy and the environment with more than a decade of experience. She is also the host of Hell or High Water: When Disaster Hits Home, a podcast from Vox Media ...

A heat pump heats and cools your home, functioning like a combined furnace and central air conditioner. Because they absorb and move heat from the air, heat pumps are exceptionally energy-efficient ...