In order to service and troubleshoot an air-source heat pump system, a service technician must understand the unit's sequence of operation. This is the order of events the system undergoes to cycle ...

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 ...

If your house has a heat pump, its compressor is in a housing somewhere outside the house. Since a heat pump provides heat in the winter as well as cool air in the summer, there’s no question about ...