Furnace Repair | Heating Services

Need Furnace Repair?

If your home’s temperature is dropping with the temperature outside, it’s time to call Command Service Center, Inc. Our NATE-certified technicians will diagnose the issue quickly and provide you with a detailed report on what is wrong. With your approval, we’ll repair your furnace on the spot and have your heating system blowing nice warm air again!

Furnace Tips and Advice for Heating Repairs

Battery Check             

Check the Battery In Your Thermostat

If it seems as if your furnace doesn’t produce any heat, check the battery level in the thermostat. In some models, simply replacing the battery may do the trick.

Filter Replace             

Change the Air Filters

Dirty air filters lead to a multitude of furnace problems. Clean or replace the filter once a month, according to the manufacturer’s directions. One of our furnace repair professionals can show you how to do this.

If these tips don’t work, give Command Service Center, Inc. a call today for fast and friendly heating repairs in Libertyville, Antioch, and the surrounding areas.

Most Common Furnace Problems

Whether it’s a house or commercial building, the same basic problems plague furnaces in Illinois. Below are some of the most common furnace problems we see in Illinois as well as common causes.

The Furnace Blows Cold Air

A furnace that doesn’t perform its main task may have problems with the thermostat setting, power, gas, or the pilot light.

The Furnace Doesn’t Heat Enough

In addition to a clogged filter, a furnace may not produce enough heat if it’s the wrong size for the space.

Noisy Furnace

Rumbling, squeaking, and rattles aren’t normal. The sounds may indicate a mechanical problem, airflow reductions, or a clogged burner.

Frequent Cycling

Cycling between the “On” and “Off” modes may indicate a clogged filter, improper airflow, or a bad thermostat setting.

Malfunctioning Thermostat

A faulty thermostat can lead to problems with the fan, causing uncomfortable temperature levels.

The Blower Continuously Runs

Blower issues may indicate a problem with the limit switch, which a professional may need to replace.

Electric Ignition or Pilot Control Problems

A faulty ignition or pilot light could make it difficult to heat a home or commercial space. Thermocouple problems, drafts, or clogs in the appliance may result in an unlit pilot light.


If you have one or more of these problems, call Command Service Center, Inc. today for furnace services in Antioch, Libertyville, and the surrounding cities. Call (847) 558-7780.

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