The Pressure Switch Is Stuck in a Closed Furnace While It's On?

Answer A gas furnace uses a pressure switch to gauge the level of hot air in the heat exchanger. When the pressure reaches a level sufficient to trip the switch, the blower motor activates to push warm ai... Read More »

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How to Fix Furnace Problems With a Stuck Pressure Switch?

The pressure switch on a furnace detects when the blower motor is running. Among other features, the switch prevents cold air from blowing through the ductwork until the burner or electric element ... Read More »

How to Clean a Furnace Pressure Switch?

A gas furnace pressure switch's function is to maintain the correct pressure inside the heater. Once the pressure reaches certain levels, the heater will turn on or off. If the pressure switch is s... Read More »

A Pressure Switch Furnace Error?

A draft pressure switch is a safety device that’s designed to shut down your gas furnace if it’s not receiving the airflow it needs for proper combustion. There are several reasons why you migh... Read More »

Furnace Pressure Switch Symptoms?

A gas-powered, forced-air heating system sends heated air through a network of ducts and vents throughout a home. Gas-powered systems use natural or LP gas as a combustion material to warm a homeâ€... Read More »