Most furnaces have a lifespan of 15 to 30 years, and you may begin to experience issues on the latter end of that timeframe. While having an annual inspection is the simplest way to determine whether your furnace needs repairs or replacement, be aware of these indicators that your system is malfunctioning.

What Are Indicators of Furnace Malfunction? 

1. Strange Noises

Loud chattering or grinding sounds indicate the need for immediate professional help. They could indicate a component has come loose, and noises will occur as parts wear down over time and strain the system’s other components. If you hear the fan blower running continuously, the furnace may be reaching the end of its lifespan. 

2. Unfamiliar Odors

If a dusty smell is emanating from your heating system or you notice an uptick in allergy symptoms or a stuffy odor, take note. These indicators could mean your filter needs to be changed. If you’ve tried that and it doesn’t work, it could indicate that you have an older model that can no longer clean the air effectively. 

3. Rising Heat Bills

While you’re likely to see slight jumps in your heating costs as a result of inflation, noticeable spikes are a cause for concern. Because older systems have to run more to warm the home efficiently, they’ll use more fuel and energy and raise utility costs.

4. Frequent Repairs

Keeping an older system running can drain your financial resources. When repairs become costly and more frequent, a replacement is a more economical choice. You’ll be able to enjoy improved energy efficiency with your replacement, as new models have better ratings than older ones.

5. Inefficient Heating

If you’re noticing cold spots in your home that you’ve never had before, it indicates a heating system issue. Your furnace may no longer be able to distribute air evenly throughout the house, and some rooms may be hot, while others will remain significantly colder.

If you’re experiencing furnace issues, All Temperature Systems can help. Serving Waupaca County, WI, this heating and air conditioning contractor has been the community’s trusted source for quality repairs and maintenance since 1995. For your convenience, they also offer 24/7 emergency service to both commercial and residential clients. Browse through their full list of services online or call (715) 258-8501 to speak with a team member.