In this troubleshooting situation, the equipment is a package unit heat pump, and the customer has called for service because although they have the thermostat set at 74° F, the temperature in the ...

This technical primer breaks down defrost control board operation, key components, and practical troubleshooting steps every ...

Your backup heat is supposed to be the quiet safety net in your home’s comfort system, not the star of the show. Yet in many ...

Heat pumps function similarly to refrigerators or air conditioners, which take warm air from one space and send it to another. In the winter, a heat pump transfers heat from the outdoors inside and, ...