How To Access And Clean A Furnace Blower

Posted on: 14 October 2015


The functionality of your central HVAC system depends on the operation of your heater and air conditioner. Of course, if there is something serious wrong with your heater or AC unit, you will probably need to start looking for a new product. However, these appliances are very expensive. It is a major investment, so you want to explore all the alternatives first. You might actually be able to improve the functionality of your HVAC system by cleaning the furnace blower. Most central air HVAC system use the furnace blower to circulate air (even from the AC) throughout the house.

Accessing and Cleaning the Furnace Blower

The furnace blower is actually a very easy component to clean. First, unplug your power supply before you start any work. Then, locate the door to the blower compartment. It is usually behind a vented metal door and it is always accessible, so it is usually right on the front. Remove the door by taking out the small screws on the side.

Once you have access to the blower compartment you will notice a large fan. In some furnaces, the fan will be covered by an aluminum encasement. You will need to take the encasement out to access the fan. This just involves removing a few screws. The fan is also secured to the furnace with mounting brackets on the top and bottom. Once again, remove the screws and set them aside in a safe place. You do not want to risk losing the factory screws, because it is very important that the fan is properly mounted.

Along the back of the fan is a cord that you need to unplug. At this point, you should be able to slide the fan out of the compartment. Once it is on the floor, you can vacuum out the entire compartment. Make sure there is no dust or dirt build up in the fan either.

Now, all that is left to do is to put everything back in place and test your furnace. Don't forget to plug the power supply to the fan back in before you slide it into the compartment and attach the screws. Make sure all the screws are tightly fastened, as you do not want the encasement or fan to come loose over time. You can do a test run while the compartment door is still removed. This is a good idea just in case there is a problem with the furnace or you forgot to plug in the power supply.

A clean furnace blower will improve the function of your heater and air conditioner, and may even lengthen the lifespan of your HVAC system.

For more information, contact a company like Advanced Heating & Air Inc.