BCFURNACE
773-400
+5% Tax • Shipping calculated at checkout.
U.S. Duties/Taxes, if applicable, may be due at time of delivery.
PRESSURE SWITCH ASSEMBLY
Pickup available at 75 Blue Mountain St #3
Usually ready in 24 hours

PRESSURE SWITCH ASSEMBLY Air Pressure Switch, Air Proving
+5% Tax • Shipping calculated at checkout.
U.S. Duties/Taxes, if applicable, may be due at time of delivery.
Pickup available at 75 Blue Mountain St #3
Usually ready in 24 hours
This premium Pressure Switch Assembly is a critical safety component designed for high-efficiency gas furnaces and residential HVAC systems. Functioning as an air proving switch, this part monitors the vacuum pressure created by the draft inducer motor to ensure that combustion gases are being properly vented before the ignition sequence begins. If the switch detects inadequate airflow or a venting obstruction, it acts as a fail-safe to prevent the furnace from operating. A malfunctioning pressure switch is a common cause of heating systems failing to ignite or shutting down prematurely. This reliable replacement assembly helps restore safe, efficient operation to your heating unit, ensuring consistent indoor comfort during cold weather.
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