In order to keep your furnace running smoothly, it is important to keep dust and dirt away from your furnace. Dust and dirt can impede how your furnace works and functions.
#1 Furnace Filter
One of the most important areas of furnace maintenance is cleaning the filter. Remove the filter from the furnace and hold it up to the light. If you can easily see light streaming through the filter and it looks clean, you can put it back. If most of the light is blocked or the filter looks dirty, you are going to want to replace your filter. You should do this before you start heating your home each year.
Throughout the heating season, you should check on your filter at least once a month. If the filter is dirty when you do the check above, be sure to replace it if your furnace uses a disposable filter or clean it if your furnace uses a permanent filter. Usually, disposable filters have cardboard frames whereas permanent filters, that you can clean, have stronger metal or plastic frames.
#2 The Blower
The next part of your furnace that you need to clean is the blower. This is the device that literally blows the air that your furnace pulls in through its system and into your home. To clean the blower on your furnace, you are going to need to remove the panel that covers up the pan. You will probably need a screwdriver to remove the panel over the fan. Then, use a cloth or duster to clean off the blades on the blower. Be sure to clean the front and back of the blades, as well as around the housing for the blower. This should be done at least once a year.
#3 Engine Assembly
Finally, you need to clean the engine assembly for your furnace at least once a year. That include all the belts and pulleys that are connected to the motor housing. There should be a panel you have to remove to access the engine on your furnace. You can use a rag to wipe down the different elements of the furnace. Then, use some compressed air to clean around the smaller components of your furnace engine. You can also use some q-tips to clean around your engine and get into the smaller cracks as well.
Keeping the furnace filter, blower, and engine assembly free of dirt will help your furnace operate properly.