1-778-759-9864
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BCFurnace
LENNOX PRESSURE SWITCH DUAL PORT 2.50" 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 2.50" WC SPST Air Pressure Switch, Air Proving

BCFURNACE

773-347

CA$647.08

+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 2.50" 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 designed for Lennox gas furnaces and residential HVAC systems. Functioning as an air proving switch, it monitors the draft inducer motor to ensure proper airflow and venting are established before the ignition sequence begins. This prevents the furnace from operating under unsafe conditions, such as blocked vents or inducer motor failure. Featuring a precise 2.50" WC (Water Column) set point and a reliable SPST (Single Pole Single Throw) contact configuration, this component is the ideal solution for repairing heating systems experiencing ignition failure, frequent cycling, or pressure switch lockout codes. Built for long-term durability, it ensures your heating equipment operates efficiently and safely throughout the winter months.

Specifications

Type
Air Pressure Switch
Size
Standard HVAC control component
Application
Residential gas furnaces and high-efficiency heating systems requiring draft inducer airflow monitoring.
Specifications
Switch Type: SPST (Single Pole Single Throw); Port Configuration: Dual Port; Pressure Rating: 2.50 inches WC (Water Column); Function: Air Proving/Safety Interlock.

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 773-347 a genuine OEM part?
Yes, the 773-347 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 773-347 is compatible with my BCFurnace furnace?
The easiest way is to match the part number (773-347) 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 773-347 shipped?
Most Air Pressure Switches including the 773-347 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 773-347 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 773-347 is in stock before visiting.

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