• Receiver outlet valve (king valve) partially closed off. Many technicians believe that when any part of the system’s high side is restricted or plugged, head pressures will elevate. This is simply ...

If your home isn’t equipped for central air conditioning, mini-splits may be a smart alternative, particularly if you don’t want to install and remove clunky window units each season. Mini-splits, ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Thom Dunn Thom Dunn is a writer focusing on home heating and cooling. He once ...