It’s easy to be alarmed when your residential HVAC unit emits a burning odor. The unpleasant smell can be caused by a number of factors, and it’s important to learn about them to gauge their severity. Below are some common reasons why your heater is generating this concerning odor.

3 Reasons Residential HVAC Units Produce Burning Smells

1. Electric Issues

Problems involving your system’s electrical connection can be a definite cause for worry. A burning smell could be caused by the blower motor becoming overheated as it fails to push air through a clogged filter. Additionally, current overflow through electrical wiring can damage their outer sheath and produce an unmistakable odor. Both these situations warrant timely attention from an HVAC contractor to address potential safety issues.

2. Dust Accumulation

If you haven't operated your heating system in a while, you’ll likely be greeted by a burning odor the first time you turn it on. When not in use, your HVAC gathers dust, which seeps into its internal components over time. The dust will burn as your furnace heats up, pumping out foul-smelling air. Typically, this isn't a cause for concern, and the odor disappears on its own after some time.

3. Foreign Objects

The smell of heated plastic is unmistakable and usually indicates there’s a household item in the furnace. Households with children should check their vents and heating system for small toys. Other possible items that could have made their way in the heating system include plastic bottle caps, buttons, or small combs. If the smell is strong and won’t dissipate, turn off the unit and call a residential HVAC contractor to come and take a look.

Unexplained odors from your residential HVAC can be worrisome. Put your mind at ease and have them checked out by the experts at April’s Country Air Heating & Cooling in Bolivar. For over 20 years, they have served residents throughout southwestern Missouri with top-tier heating system repair solutions. Find out what other services they offer by calling (417) 326-2771, or visit their website.