A common reason why a heat pump does not heat at the beginning and end of the cold season is ice. Moisture collects and freezes on the radiator grille of the heat pump. An ice crust forms, which interferes with normal heat transfer.
The radiator (condenser) is located at the rear of the heat pump. If ice has formed on it, do not try to knock it down. You can get rid of ice with a good construction hair dryer. If not at hand, spill the grate with warm water. Then dry it thoroughly with a regular hair dryer. If you need help with high end heat pump repair, call us right now!