BCFURNACE
773-143
+5% Tax • Shipping calculated at checkout.
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YORK PRESSURE SWITCH 2-STG -0.20" WC / -0.35" WC
Pickup available at 75 Blue Mountain St #3
Usually ready in 24 hours

YORK PRESSURE SWITCH 2-STG -0.20" WC / -0.35" WC 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 dual-stage air pressure switch is a critical safety component designed for high-efficiency gas furnaces and HVAC systems. As an essential air proving switch, it monitors the vacuum pressure produced by the inducer motor to ensure proper venting of combustion gases before the ignition sequence begins. Engineered for dual-stage heating units, it features calibrated set points of -0.20" WC and -0.35" WC to maintain precise system performance. If your furnace is failing to ignite or throwing a pressure switch error code, this reliable replacement part restores safe operation and peak efficiency to your heating equipment. Built for durability and accuracy, it prevents hazardous operation by shutting down the system if inadequate airflow is detected.
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