BCFURNACE
773-248
+5% Tax • Shipping calculated at checkout.
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LENNOX PRESSURE SWITCH 0.85" WC
Pickup available at 75 Blue Mountain St #3
Usually ready in 24 hours

LENNOX PRESSURE SWITCH 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 high-quality Air Pressure Switch is a vital safety component for residential gas furnaces and HVAC systems. Calibrated to a precise 0.85" WC (Water Column) set point, this air proving switch monitors the draft inducer motor's performance to ensure proper airflow is established before the heating cycle begins. If your furnace is cycling incorrectly, failing to ignite, or displaying pressure switch lockout codes, this reliable replacement part can restore your system to peak performance. Designed for durability and precision, it acts as a critical fail-safe, preventing the burner from igniting if venting or combustion air is insufficient, thereby protecting your home and heating equipment.
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