FRANKLIN HEATING: NEWS
IS YOUR FURNACE FILTER CLEAN?
A dirty, clogged filter limits the airflow, eventually causing heat and pressure to build up in the furnace. Newer, more efficient furnaces are very sensitive to this problem and will often shut down before a dirty filter causes more trouble. For older furnaces, the unit will continue to run but with less heat output and reduced efficiency. If the blower is running but no heat is coming out, replace the filter. If this solves your problem, then your filter was long overdue to be replaced. A dirty filter also causes soot buildup on the heat exchanger, reducing the efficiency of the furnace and shortening its life. Check the owner's manual for directions regarding removing and replacing the filter. Make sure that the arrow points toward the furnace. Inspect pleated filters once a month. Hold them up to the light and if you can't see the light clearly through them, replace them. Change inexpensive flat filters at least once a month - set a reminder on your phone so that you don't forget. Special note* - Manufacturers say pleated filters are good for three months, but change them more frequently if you have pets, kids or generate lots of dust.