1-778-759-9864
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BCFurnace
LENNOX PRESSURE SWITCH DUAL PORT 3.00" WC SPST Air Pressure Switch, Air Proving furnace part available in Vancouver, Burnaby, Port Moody, Langley, North Vancouver, Richmond, Maple Ridge, Delta, West Vancouver, New Westminster, Surrey, Coquitlam, Port Coquitlam, Pitt Meadows

LENNOX PRESSURE SWITCH DUAL PORT 3.00" WC SPST Air Pressure Switch, Air Proving

BCFURNACE

773-348

CA$881.79

+5% Tax • Shipping calculated at checkout.

U.S. Duties/Taxes, if applicable, may be due at time of delivery.

Name

LENNOX PRESSURE SWITCH DUAL PORT 3.00" WC SPST

1units available

Pickup available at 75 Blue Mountain St #3

Usually ready in 24 hours

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Not sure this fits your furnace? Call us — we're happy to help

Product Details

Description

This high-performance dual-port air pressure switch is a vital safety component for residential gas furnaces and HVAC systems. Designed to monitor the draft created by the inducer motor, this air-proving switch ensures that the combustion blower is operating at the correct pressure before allowing the heating cycle to proceed. Featuring a precise 3.00" WC (Water Column) setpoint and a Single Pole Single Throw (SPST) configuration, it provides reliable switching to prevent hazardous conditions caused by venting failures or blockages. If your furnace is failing to ignite or throwing pressure switch error codes, this replacement part is essential for restoring safe and efficient heating performance. Its dual-port design allows for accurate differential pressure sensing, making it a critical upgrade for maintaining optimal airflow and combustion safety.

Specifications

Type
Air Pressure Switch
Size
Standard HVAC Component
Application
Used in forced-air gas furnaces and heating systems to verify proper venting and inducer motor operation.
Specifications
Dual port connection; 3.00" WC setpoint; Single Pole Single Throw (SPST) switch action; Air-proving functionality.

Not sure this is the right part?

Our team is happy to help you verify compatibility before you order. We'll confirm it fits your specific furnace model.

1-778-759-9864

Mon–Sat 8AM–9PM PST · Or email parts@bcfurnace.com

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Frequently Asked Questions

Is the 773-348 a genuine OEM part?
Yes, the 773-348 is a genuine OEM replacement part manufactured by BCFurnace. We source all Air Pressure Switches from authorized distributors to ensure exact-fit compatibility. This Air Pressure Switches is backed by our 100% compatibility guarantee — if it doesn't fit your furnace, we'll make it right.
How do I know if the 773-348 is compatible with my BCFurnace furnace?
The easiest way is to match the part number (773-348) with your furnace model number. Visit the BCFurnace page on our site and enter your model number in the search bar — our system will show all compatible Air Pressure Switches for your specific unit. You can also call our technicians at 1-778-759-9864 for free compatibility verification.
How fast can I get the 773-348 shipped?
Most Air Pressure Switches including the 773-348 ship within 1–2 business days from our warehouse. We ship across Canada and the United States with tracking on every order. For urgent BCFurnace repairs, contact us at 1-778-759-9864 for expedited shipping options.
Can I pick up the 773-348 at your store?
Yes! Local pickup is available at our Coquitlam, BC location: 75 Blue Mountain St #3. Air Pressure Switches orders are usually ready within 24 hours. Call us at 1-778-759-9864 to confirm the 773-348 is in stock before visiting.

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