Can a Dirty Furnace Filter Cause No Heat in Your Home?
Can a dirty furnace filter cause no heat? Yes—very often. A clogged filter can restrict airflow enough that your furnace overheats, trips the high-limit safety switch, and shuts the burners off, leaving you with little or no heat. In many homes, replacing the filter and resetting power restores heat within minutes—unless another airflow or ignition […]