Heat Pump Fan Relay Problems

Relay boards are often misdiagnosed.

Heat pump fan relay problems.

Now let s explore further possibilities. Make sure your fan auto switch is set to automatic. Every so often the unit will go into defrost mode to remove. This sounds to me like the heat pump is running off the auxiliary or emergency heat and something is wrong with your heat pump condenser producing heat.

Low voltage wiring connections or a stuck fan relay. 2 f is usually the minimum you want in the heat pump thermostat offset before the auxiliary heat kicks in to help the. In the winter heat pump icing up is often perfectly normal. If the fan runs but blows cold air set the thermostat 5 degrees or more above room temperature to activate the backup heating elements.

Like all appliances your heat pump may sometimes have trouble working correctly. Before replacing the board make sure you check more commonly defective parts particularly the fan motor capacitor and the fan motor itself. If the relay board isn t working properly the fan might not run. This article discusses the diagnosis and repair of problems with the outdoor compressor condenser fan and fan motor including fans that wont run fans that run at slow speed and fans that won t stop running our page top photo of a compressor condenser fan unit shows that a stick had fallen into the fan blocking the blades and.

The relay board provides voltage to many components of the air conditioner including the fan motor. First rule out the obvious. During the cold winter months your heat pump s outside unit will sometimes be covered with a coating of frost on the sides or even light ice. Heat pump troubleshooting can narrow problems down to general components and expedite heat pump repair by an hvac professional.

Alternatively maybe your heat pump doesn t cool down after use or it runs constantly. Icing up heat pump frozen in winter. With that in mind below are some of the most common heat pump problems as well as. Heat pump troubleshooting problem 1.