The furnace is a tried-and-true method of heating a home. Homeowners have come to depend on their furnaces’ ability to quickly and efficiently heat their homes, providing cozy and comfortable environments on the coldest winter days.

But even the most dependable heating system will develop issues every now and then. When your home’s furnace isn’t performing optimally, you’ll quickly notice it. As a homeowner, it’s essential to understand some common issues your furnace will inevitably encounter. That way, you’ll know when to call us for prompt furnace repair that’ll restore your home comfort.

Here are five of the most common issues your furnace may experience.

1. Poor Airflow

When a furnace is working as it should, you’ll notice a strong, consistent flow of air blowing from the vents. If you’ve noticed a decline in airflow, check the air filter and change it for a clean one if it’s dirty. If that doesn’t fix the issue, there might be a problem with the blower fan. 

The blower fan’s job is to blow the heated air through your ductwork. This warrants a call for repair. You don’t want to pay for your furnace to heat air, only for it to not make it to the rooms of your home.

2. Uneven Heating 

Sometimes your furnace and blower are working just fine, but it’s your ductwork that’s problematic. Leaks, holes, and tears in your ducts can reduce airflow and cause cool uneven heating throughout your home. If you notice cold spots developing, a breach in the ductwork could be the cause.

3. Short Cycling

Short cycling occurs when your furnace repeatedly turns itself on and off without completing a full heating cycle. This can happen for many reasons. The important fact to know about short cycling is that not only does it keep your home from reaching your desired temperature, but it’s also incredibly hard on the furnace. This is an issue that should be addressed as soon as possible. 



4. Loose or Dirty Wiring

Sometimes a loose wire or a dirty fuse can cause a miscommunication between the thermostat and the furnace. You’ll notice this when you notice a disconnect between when the thermostat is reading and the actual temperature of your home.

Something as simple as a single loose wire can also lead to a short that will stop your furnace from heating properly. If you suspect a wiring issue with your furnace, this is a job to leave to a professional HVAC technician.

5. Thermostat Not Reading the Correct Temperature

Even when your wiring is working perfectly, the thermostat could have a hard time reading the exact temperature of your home. When the thermostat isn’t working properly, it can register that it’s cooler or hotter than your home actually is. If the thermostat thinks it’s 5°F hotter than it actually is, then your thermostat won’t tell the furnace to turn on even when it’s colder.