Common Reasons Why Your Heating System Might Not Produce Warm Air

When the cool air outside is filling your home, and it doesn’t seem to be getting warm inside, there are a few possible reasons why no heat is coming out of your vents. Take a look at the most common ones below!

Malfunctioning Thermostats

One possible reason why the heat may not be coming on could be because the thermostat is not working properly. 

It could be an electrical problem or simply that the fan is switched to “on” instead of “auto.” When a fan is switched to “on,” it will run continuously instead of only when it needs to circulate heat. 

By changing it to “auto,” you can ensure that it shuts down when it’s only blowing cool air.  

A Dirty Unit

If your heater includes an outdoor unit and that unit is covered in leaves, debris, or growth, it won’t be able to get airflow, so it will not perform the way that it should. 

Filter Problems

Filters help get rid of dust, pollen, pet dander, and other air pollutants in the home. All air coming in and out of the heat source has to pass through that air filter. 

If the filter is dirty and clogged, air cannot flow freely to circulate warmth throughout your house. 

Low Refrigerant

It may sound contradictory, but a heat pump requires refrigerant to transfer heat from the outside of the home to the inside and vice versa. There should be a constant steady level of refrigerant in a heat pump, but your pump may have a low level for various reasons. 

A leaking line is one of the more common problems that can occur. 

Old Unit

As with all equipment, heating systems have a limited lifespan. If your system is more than a decade old, it may be time for a replacement. 

Possible Leaks 

A leak in your ductwork can allow hot air to escape before it reaches your vents. Getting preventative maintenance can help you to have your ducts cleaned and checked to ensure there aren’t any holes or loose joint connections.

Another source of heat leak comes in the form of poor insulation. Insulation keeps heat inside your house and allows the ducts to preserve the heated air that flows through them inside. If you find your home is rapidly losing heat, having new insulation installed could make a big difference.

Reach Out to Cascade Mechanical

If you’re experiencing difficulty with your heating system and need repair or preventative maintenance, call Cascade Mechanical today to schedule an appointment today.