What to Do if Your Furnace Is Not Keeping up with Your Thermostat

We are the most trusted furnace installation experts in Overland Park, KS.

We know that winters in Overland Park can be frigid. To keep your house warm, you must have an efficient furnace. Therefore, if your furnace is not keeping up with your thermostat, you must hire a reputable HVAC company for an immediate fix.

Air Unlimited Heating & Cooling strives to increase the comfortability of your Overland Park home or business with first-class HVAC installation, repair, and replacement services.

We have decades of experience working with furnaces. Our technicians will not leave your home until they resolve your heating issues.

If your heating system is not working to its full potential, try these tips and tricks to help you diagnose the problem.

Inspect Your Thermostat

The first thing you should check when your HVAC unit is not functioning is your thermostat. If your thermostat isn’t working, then your heating system will suffer.

Just like HVAC units, thermostats grow outdated. When your furnace is not keeping up with your thermostat, you will have to replace your thermostat with an updated version.

A thermostat may start to read the wrong temperature in your home. If so, it may send an incorrect signal to your furnace.

Your furnace relies on your thermostat to gauge your home’s temperature to operate. When it does so incorrectly, it will throw off your furnace. A licensed HVAC rep can fix the issue.

Sensor Issues

Another possible culprit of your HVAC woes is your furnace’s sensor. Every furnace has a sensor that helps regulate the temperature of your home.

If a blockage prevents your furnace from reading the sensor, your home will not efficiently heat. Sensors can be hard to fix without professional assistance. Our technicians will inspect your sensor, ensuring that no dirt or debris is blocking it. 

Clean Your Air Filters

One of the reasons why your furnace may not heat your home efficiently is due to a clogged air filter. When dust and other particles settle on your filters, it can restrict the airflow in your HVAC unit. This dust is also harmful to inhale, especially if you suffer from respiratory issues.

On average, you should clean or replace your air filters every 90 days. Doing so ensures that you breathe quality air daily. Our HVAC technicians will provide these services for you if necessary.


If you have an overheating furnace, there is potential for disaster. For protection, your HVAC system will power down automatically when it gets too hot.

However, if you keep turning it on, you may be vulnerable to stress cracks which can lead to fires or explosions.

If your HVAC system shuts down frequently, call our contractors immediately. You do not want to tamper with an overheating furnace.

Wrong Size Furnace

It is possible that you may have the wrong size furnace in your home. If your heating system has a slimmer stature, it may not be capable of heating your entire home.

Alternatively, if your furnace is too large, it will heat your thermostat area too quickly. Thus, the unit will power down before it can heat the rest of your home.

When you install a furnace, consult with an HVAC technician to ensure that you are buying an appropriately sized furnace.

Furnace FAQs

We receive several questions about furnaces daily. Here are some of the most common.

Do I Need to Schedule Maintenance Appointments for My Furnace?

Many homeowners delay scheduling their furnace maintenance appointments if they do not have an issue with their heating system. However, though you may not notice a problem, an HVAC professional can help prevent long-term headaches with a thorough cleaning. 

How Long Should a Furnace Last?

Though life expectancies vary by furnace brand, you can expect to get 15 – 20 years out of your furnace. You must maintain your furnace to get the most out of it. We recommend scheduling routine maintenance sessions with our HVAC technicians to get ahead of any potential issues.

How Long Does It Take to Fix a Furnace?

Typically, our contractors can repair your furnace in four to six hours. Of course, it depends on the problem you are experiencing. If you install a new furnace, it will take our team between four and eight hours.

When Is the Best Time to Install a Furnace?

We suggest that the best time to purchase a new furnace is spring. Typically, furnaces are low in stock during the winter and summer, as they are more in demand during those seasons. However, you can save on heating systems when buying them in the offseason.

How Often Should I Run My Furnace?

To conserve energy, run your furnace as little as possible. Today’s smart furnaces and thermostats automate the energy conservation process by pumping heat through your vents only when necessary. We recommend opening your windows on mild days in place of running your heater.

Should I Set My Thermostat Fan to ‘On’?

Turning on your thermostat fan is one of the best ways to rid your system of dust and debris. It shields your home from pollen, making it the perfect setting for allergy sufferers. However, if you have an old system, you will not reap the same benefits.

What We Do

Our accredited HVAC technicians provide many residential and commercial services for our customers.

Furnace Repair

If your furnace requires repairs, we are happy to accommodate you with expert advice and quick fixes. Rather than invest in an expensive, new HVAC system, we can increase the efficiency of your current furnace.

We are an EPA-certified team, meaning we always put safety first. Our contractors utilize the best equipment and repair methods to accomplish our tasks quickly and efficiently.

If you experience cold air coming through your furnace, odd noises, or high utility bills, call an Air Unlimited contractor today.

Furnace/Thermostat Installation

Perhaps you will need a new furnace or thermostat installation. Fortunately, we also provide this service to our customers. A premium thermostat will give you optimal temperature control of your home.

Plus, today’s thermostats make your heating and air conditioning units more efficient. Leave your thermostat at a set temperature, and your HVAC unit will do the work automatically.

Your furnace will turn on only when the room temperature is below the set temperature on your thermostat. We can answer all your questions about what thermostats and furnaces work best for your needs.

Furnace Maintenance

Preventive maintenance is the best way to avoid all these problems with your furnace. Overland Park homeowners should call us for an HVAC inspection at least once a year.

We will clean your furnace, replace filters, and fix any mechanical issues. Once we leave your home, your furnace will operate at its full potential.

Call Air Unlimited Today

If you have an outdated furnace, it can cause many problems. Perhaps it is time for an upgrade.

We are here to resolve all your furnace-related issues. There is no question too complex for our licensed and insured contractors. Our goal is to ensure that your home is as comfortable as possible.

If your furnace is not keeping up with your thermostat, call Air Unlimited Heating & Cooling’s Overland Park, KS, office at (816) 286-7258.

We know that HVAC emergencies can strike at any time. That is why we make ourselves available to take your call 24/7.Many of our clients are curious to learn what a furnace pilot light is.