Heat Pump Too Frosty? Some Tips For Keeping It Ice-Free by Mike Rampey | March 28, 2013March 28, 2013 It doesn’t take a snow storm to cause the heat pump condenser coil to ice over. Something as simple as a clogged air filter could be to blame. If you […]Read More Filed Under: Heat Pumps Tagged With: demand defrost mode– frozen coil– heat pump– low refrigerant charge– Oklahoma– Tulsa and Broken Arrow