BCFURNACE
773-017
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LENNOX PRESSURE SWITCH DUAL PORT -0.85" WC
Pickup available at 75 Blue Mountain St #3
Usually ready in 24 hours

LENNOX PRESSURE SWITCH DUAL PORT -0.85" 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 dual port air pressure switch is a vital safety and performance component for residential gas furnaces and high-efficiency heating systems. Functioning as an air proving switch, it monitors the vacuum pressure created by the inducer motor to ensure proper venting of combustion gases before allowing the ignition sequence to proceed. If your furnace is experiencing startup failures, frequent cycling, or error codes related to airflow, this replacement pressure switch is essential for restoring reliable operation. Designed for precision and durability, it features a dual-port configuration and a factory-calibrated set point to maintain the high safety standards of your HVAC equipment.
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