BCFURNACE
773-016
+5% Tax • Shipping calculated at checkout.
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LENNOX PRESSURE SWITCH -0.95" WC
Pickup available at 75 Blue Mountain St #3
Usually ready in 24 hours

LENNOX PRESSURE SWITCH -0.95" 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 replacement pressure switch is designed for Lennox gas furnaces and HVAC heating systems. As a critical air proving component, it monitors the negative pressure created by the draft inducer motor to ensure proper venting of exhaust gases before ignition. Operating at a set point of -0.95" WC (Water Column), this vacuum switch acts as a vital safety lockout, preventing the furnace from operating if it detects inadequate airflow, a failing inducer motor, or a blocked vent. If your heating system is experiencing startup failures or intermittent shut-offs, replacing the air pressure switch can restore safe and efficient operation. Engineered for durability and precision, this switch ensures your HVAC system maintains optimal combustion and indoor air safety.
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