Why Choose DorMar for Furnace Repair?
Since 1962, DorMar has been helping customers in Central Ohio stay warm. We’ve also expanded into Southwest Florida, making reliable furnace repair services available in additional cities.
As a family-owned business, we’re the best choice if you’re concerned about keeping your family safe and comfortable. To give you extra peace of mind, we provide regular training and hold our technicians to high standards. Do you need furnace repair in Central Ohio or Southwest Florida? Contact the experts at DorMar to schedule service!
Signs Your Furnace Needs Repair
In many cases, a furnace breakdown is preceded by at least one sign that something isn’t quite right. For example, banging, squealing or grinding sounds may indicate that your furnace has a loose part. Unusual noises have also been linked to ignition and motor problems.
Bad smells are another common sign you need furnace repair in Central Ohio or Southwest Florida. If there’s an electrical issue, you may notice a persistent burning smell. Serious furnace problems can even cause you to smell gas. Weak heating and high energy bills can also signal a problem with your heating unit.

Common Furnace Problems
When it comes to furnace repair, some problems are more common than others. We often see dirty or clogged filters, which block airflow and reduce efficiency. Ignition issues prevent the burner from lighting, which may leave you without heat. In some cases, the thermostat is to blame for heating problems. If the thermostat doesn’t work correctly, your furnace can’t maintain its set temperature.
If your pilot light is flickering or yellow, you may be dealing with incomplete combustion. This requires immediate repair, as it increases the risk of carbon monoxide exposure. Worn or frayed belts can cause your blower motor to stop working, leaving your home ice cold instead of toasty warm.
We also recommend that you watch for frequent cycling. This is when your furnace turns on and off repeatedly instead of working as expected. Frequent cycling is often associated with poor airflow or issues with your thermostat. DorMar can even help with cracked heat exchangers, dirty flame sensors, blown fuses, and blower motor failures.