If There Is An Issue With The Sensor, Your Furnace May Not Work Properly The flame sensor is an important component of a furnace — it is designed to identify when there is a flame. However ...
The Family Handyman on MSN24d
Why Is My Furnace Blowing Cold Air?
If your gas furnace begins to blow cold air, then cuts off abruptly, it could also be the flame sensor, which sits in the ...