One of the most dreaded experiences in the home is furnace overheating. When the furnace takes off and goes crazy it’s an electric horror because the “valve” (usually the one at the end of the fuel line) is clogged up, so no air can get in. Then the huge motor that produces the heat roars all at once trying to get more air in to help the heating coils. This is a problem with almost every furnace that is used and it’s imperative that you repair or replace the unit ASAP.
Water in your furnace is typically a sign that the unit needs to be repaired. The worst time for this is at night while it’s still warm and filled with water. As the water evaporates from the furnace, it can cool the inside of the furnace which will cause a spark and start a fire. So you need to replace the water filter and drain the furnace water before you get any other tasks done or repairs are needed. You also need to shut off the electricity to the unit if you have to perform any repairs while it’s warm. After the water evaporates and the furnace is cooled, move it out of the area to prevent re-occurrences.
Molds and mildew are another cause of furnace overheating and if you don’t get rid of them soon you could have a serious problem in your house’s air quality. It’s vital that you constantly vacuum all of the cracks in your house that may allow the moisture and mold to get in. You also want to vacuum out your attics. If you don’t keep your house free of mold, the mold will likely find a way in and cause problems for you and your family.