The purpose of a furnace is to heat air and circulate it throughout your home. However, you may notice that your home in Lincolnshire, IL is colder when your furnace is running. Here are some reasons your furnace is blowing cool air and making your home colder.

Ignition Problem

The furnace needs a strong spark to ignite the gas and start the heating process. If the spark is weak, it won’t be able to ignite the gas properly. As a result, your heating system may run, but it won’t be able to generate enough heat to warm the air.

Dirty Filter

The filter traps dirt, dust and other debris that could damage your heating system. Over time, the filter can become clogged with these particles.

When this happens, it restricts airflow and makes it difficult for the furnace to heat the air. As a result, your home may feel colder when the heating system is running.

Thermostat Problem

Thermostats require proper calibration to work correctly. If your thermostat is not calibrated properly, it may not be sending the correct signal to the furnace.

As a result, the furnace may not kick on when it’s supposed to or it may run longer than necessary. This can cause cool air to blow from it and make your home colder.

Inadequate Gas Supply

If your furnace isn’t receiving enough gas, it won’t be able to generate enough heat. This can cause it to blow cool air and make your home colder. You should check the gas supply line to ensure there is no blockage.

If your heater is making your home colder, call Martin Enterprises Heating and Air Conditioning to schedule maintenance. We will clean your filter and check for ignition and thermostat problems. We will also ensure your furnace is running efficiently so you can stay warm all winter long.

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