Why Is My Furnace Blowing Cold Air?

A malfunctioning furnace that doesn’t heat your home in winter is annoying, to say the least. Luckily, a professional technician can solve most of the issues that make a furnace fail to heat your Indio, CA home. Here, we explore some reasons why a furnace might blow cold air.

You Have a Faulty Thermostat

When you input the temperature you want on your thermostat, the device communicates that setting to the furnace. The furnace starts, then works until it has heated your home to the desired temperature.

Any damage to the wires linking your thermostat and furnace can inhibit communication between them, causing your furnace to malfunction. A professional technician can open the thermostat, inspect its parts and fix the faulty ones.

Your Circuit Control Board Is Faulty

The instructions from your thermostat go to your furnace’s circuit control board. The circuit control board serves as the furnace’s central command. It gives instructions to the various furnace components, including the blower and burner.

If the circuit control board isn’t working right, it may signal the blower to turn on and fail to signal the burner to start working. As a result, there is no hot air for the blower to distribute.

Usually, a circuit control board runs into problems due to lack of maintenance. You need to schedule regular furnace maintenance visits so that a technician can inspect and clean all the circuit control board’s parts.

Your Furnace Is Overheating

Overheating may occur if you have a blocked air filter, blocked vents and friction between moving parts. When your furnace starts overheating, it goes into safety mode and shuts down to prevent a fire.

You Have a Clogged Air Filter

A clogged air filter obstructs the entry of air from your home into the furnace. That means the furnace doesn’t have enough air to heat and move back into your living space.

Contact us at All Knight Heating & Air Conditioning, Inc. for excellent heating solutions. Our technicians will determine why your furnace isn’t heating your home and repair the faulty parts.