Be Careful of These Furnace Issues

Sometimes, what seems like common furnace problems in Indianapolis can be much more worrisome than they appear. Protect your home by being aware of these furnace issues that can quickly turn from inconvenient to dangerous.

Loud Noises When You Start Your Furnace

A banging and booming furnace is unnerving enough. Once it starts happening when you turn your furnace on, you likely have a common but potentially dangerous issue on your hands — delayed ignition. 

These are essentially mini explosions happening inside your furnace thanks to gas building up in the combustion chamber. When the furnace finally turns on, it causes a burst that will inevitably make your system break down or start a fire. 

Not all loud noises from your furnace mean that you have this problem, but that’s why it’s essential to call on professionals to diagnose and fix whatever’s making all that racket.

A Cracked Heat Exchanger

The heat exchanger separates the gasses and byproducts that are harmful to breathing. But if there’s a crack in the exchanger, usually from corrosion or stress, toxic gas could start leaking from your system and significantly lower your home’s air quality.

Granted, there’s usually not a huge risk that you’ll experience deadly concentrations of these gasses, but they can still cause adverse health effects, especially if inhaled over long periods. Some symptoms include mood and personality changes, motor disorders, and even impaired memory.

Flame Sensor or Thermocouple Issues

Issues with your flame sensor are particularly problematic because they function as a safety feature. Flame sensors will automatically shut off the gas if the burners won't light, so it’s easy to see why this is one of the common furnace problems in Indianapolis that can make things much worse.



Flame sensor or thermocouple problems can range from annoying, like making it more difficult to heat your home, to hazardous, like enabling delayed ignition by allowing your system to fill up with gas. Both issues are safety hazards in their own right, so you should have this checked out immediately.

Trust Us With Common Furnace Problems in Indianapolis

Whether you have one of these furnace issues or something entirely different, you can trust Vital Heating & Air to handle it. Contact us today and get your system’s safety back on track!