10 Common Furnace Problems

If your furnace is on the fritz, Design Aire is here for you. For over a century, our furnace repair and furnace maintenance services in St. Louis have kept families comfortable through the cold Missouri winters. Below are 10 of the most common heating problems we solve.

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Got furnace problems? 

Here are 10 of the most common heating issues we diagnose and fix at Design Aire:

10. Frequent cycling.

If your furnace turns on and off in one or two-minute cycles, this is called “short cycling.” The furnace is shutting off as a safety feature, so it is important to call a professional to evaluate what is going wrong. It could be the thermostat, the blower, the filters, or something else. Design Aire can help! Give us a call!

 9. Failing to change filters.

Filters become dirty and clogged with use. This reduces airflow. Your furnace has to work harder in order to do its job, and can eventually lead to much more expensive problems.

8. Thermostat malfunction.

If your fan is not blowing properly or if your furnace shuts off before it should, it could be a problem with the thermostat. Thermostat issues are relatively common. Not only can we diagnose this quickly, but Design Aire can fix your thermostat issues quickly and efficiently.

7. Pilot control problems.

If your pilot light won’t remain lit, your thermocouple, which is a sensor that detects the functionality of the pilot light or electric ignition could be the problem. Clogs or drafts can also be the source of pilot control issues.

6. Faulty blower motor.

Your furnace blower circulates the air through your system. The blower motor can become dirty or lose power, and when it does, your furnace switches itself off. Our heating experts at Design Aire can identify blower motor problems and get your system up and running again.

5. The furnace isn’t heating your house well enough.

This can result from a clogged filter, or the furnace may not be running efficiently due to age or lack of maintenance. Another possibility is that the unit may not have the capacity to heat your home size.

4. The furnace is making noises.

Rattling, rumbling or squeaking noises are not part of your furnace function. These noises can mean that your system has a mechanical problem, that airflow is reduced, or that you have a clogged burner. Call us for furnace repair as soon as you hear these noises so that they don’t turn into a more costly problem. Our furnace repair technicians will get to the bottom of the problem quickly.

3. The blower won’t stop running.

This is usually an issue with the limit switch, which will need to be replaced by an HVAC professional.

2. Your furnace won’t heat at all.

When your heating system isn’t working at all, there can be a number of causes. Our heating repair team can identify if the problem is with the thermostat, the power, the pilot light, the gas, the condensate pan, or something else—and we will solve the problem.

1. Lack of regular maintenance. 

Seasonal HVAC inspections are important for keeping your heating and cooling systems running safely and efficiently. Our HVAC experts can check your entire system to avoid problems that can cause costly breakdowns. Over time, you’ll likely save money by extending the life of your HVAC system.

Need Furnace Repair? St. Louis Trusts Design Aire

Let Design Aire do what we do best. Improper furnace repairs can pose gas- or combustion-related safety hazards, so leave your troubleshooting to our trained and expert team of furnace repair specialists. For over 100 years, we have established a proven record of honesty, integrity, and excellence.   

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Customer Testimonials

Seth was our salesperson. He listened to our needs and provided the right product at the right price. The installation team arrived on time and went right to work.They worked with confidence and professionalism.We appreciated the care in protecting our floors and even the choice of how they went up on the roof indicated that they really did care. This company did what they said they would and certainly has our vote of appreciation and gratitude. We will happily recommend Design Aire to anyone.

Ken L.

One of the best companies to work with. My own profession is in a service industry and so I very much appreciate all the positive things about Design Aire.
The install crew arrived right on time and took exactly how much time they said they would to complete the job. The work was done well, the crew cleaned up after themselves, and were very pleasant. Seth in the office was extremely in-tune to our needs and very responsive.
I would highly recommend Design Aire.

Heather H.

Our new HVAC system was installed yesterday and we could not be happier. From quote to completion the process was great! 100% would recommend!

Greg H.

We have used Design Aire for both a new furnace two years ago and a new AC unit this summer. Everything was done very professionally and quickly. I would not hesitate to recommend them to anyone needing any type of HVAC work done.

Sean K.

Design Aire was the best choice from start to finish. Design Aire gave me the best price with the most detailed quote. The service technicians were very friendly and completed the job ahead of time. I highly recommend Design Aire.

John K.

We've used them for our old house and our new house. They are honest, friendly, professional and affordable. We felt lucky to find them.

Maddy R.

I was very impressed with Design Aire. They were timely and did an outstanding job with the installation of my new furnace. They had great communication and went above and beyond. I would highly recommend them to friends and family. Thank you so much Seth and Design Aire for making this an effortless transaction. VERY PLEASED!

Jonny M.

Design Aire sent a salesman to plan the system, and just a couple of days later sent the installers to remove the old system and install the new one. Everything happened when they said it would and the system performs as they said it would. All of the Design Aire staff were courteous, the work was performed efficiently and neatly, and they left the area cleaner than they found it. This is the second unit Design Aire has installed for us, and I have no need to look elsewhere.

Dan L.