Cold house aside and chattering teeth aside, a malfunctioning home furnace could lead to costly damage—including, as you ...

The sensor allows the pilot light to be automatically re-ignited if the flame is no longer present. The circuit is a surprisingly simple one, with a PNP transistor being turned on by the flame ...

you may wish to clean the ignition sensor (aka flame sensor) on your furnace. The ignition sensor is a safety device that ...