November 21, 2020

During the cold season, your furnace works very hard to keep your house warm and comfortable. With time, it can accumulate grime and dirt, which lowers its efficiency. Consequently, it results in high utility bills and decreases indoor air quality.

However, regular maintenance can help prolong your furnace’s lifespan and eliminate frustrating disruptions due to breakdowns. You can change the filters and vacuum out or wipe away dirt from some parts. Use the following methods to clean your furnace.

1.Change or Clean the Filters

The filter is the first line of defense in your system against dust, dirt, and other pollutants. It traps these elements meaning that it also gets dirty quickly. Hence, you need to clean the reusable filters and replace the disposable ones to prevent airflow cuts.

The first step is to locate your furnace’s access panel. It’s usually at the unit’s outer part, between the blowers and the duct. Next, unscrew and remove the front panel to access the furnace, but ensure that you turn off your system before opening a thing. Pull the filters out of the tracks, and don’t force it. If it seems stuck, look out for blockages like dirt particles or clogs and remove them.

Thoroughly inspect the filter for dirt or damage by holding it up against the light. If it doesn’t allow enough light passage, then your filter is dirty. For the replaceable model, buy the same type, and replace your older one. On the other hand, if it’s not the disposable type, remove any loose dirt particles that you can see, then wash it with mild soap and rinse with tap water. Let it dry, and slide it back to the furnace until it fits securely. Return the furnace front panel or close the access door.

2.Clean the Blower Assembly

The blower assembly component pulls air out of the furnace and pushes it to the front to distribute heat throughout your house. With time, the blowers may accumulate debris that can clog the motors. It can even move the dirt particles back into your home. To clean it, cut the power supply to the furnace, including any backup systems. Note that failure to disconnect power can lead to fatal accidents like electrocution.

Loosen up the screws that hold the furnace front panel. In other models, you need to pull the panel out of the supporting hinges. You are now in a position to slide the fan out easily. Lookout since, in some cases, the fan could have some wire connections. Mark the status of each wire for easy reassembling. You can use a small piece of labeled paper and wrap it around each section.

In other models, screws hold together the fan, and you need to unscrew them first. Remember to keep the bolts in a safe place to avoid misplacing them. Use a damp cloth a little soap and water to clean the blower. A toothbrush can help you clear out dirt particles in between the blades.

Additionally, vacuum the fan belts and blades under low power or wipe them to remove all the dirt particles. Once the unit is clean and well dried, it’s time to reassemble it back to the furnace. Reattach the wires to the right locations, or screw back the bolts. Next, plug back your furnace into power and turn it on.

3.Clean the Heat Exchanger Block

Start by unplugging all the power connections to your furnace and turn off the gas supply. Using a brush, gently loosen all dirt particles in the chamber. Alternatively, you can use a damp cloth to wipe it off. Next, vacuum all the sections in the heat exchanger block assembly to suck off and remove the loosened debris. Plug your furnace back on after cleaning.


Dust and dirt significantly affect your furnace. If you want your system to perform desirably, clean it at least once yearly. Replacing the filters also helps to restore your furnace efficiency. Nonetheless, some tasks require a professional approach. If you need help to vacuum out the areas you cannot access, reach out to TS Heat & Air.

Our company has a vast team of experts dedicated to handling any technical needs for your furnace. We avail our services in Edmond, Arcadia, Union City, Kingfisher, Spencer, Tuttle, and the surrounding areas.

We provide heat pumps, ductwork, gas furnaces, maintenance, and repair services. We cover AC installation, repair, maintenance, annual servicing, tune-ups, and various air quality services. Call us today and schedule an appointment. We have solutions specifically tailored for you.

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