1-778-759-9864
Canada (CAD $) flagCanada (CAD $)
BCFurnace
Pressure Switch, SPST, 0.80" WC PF 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

Pressure Switch, SPST, 0.80" WC PF Air Pressure Switch, Air Proving

BCFURNACE

773-398

CA$235.12

+5% Tax • Shipping calculated at checkout.

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

Name

Pressure Switch, SPST, 0.80" WC PF

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 premium Air Pressure Switch is a vital safety component designed for high-efficiency gas furnaces and HVAC systems. As a Single Pole Single Throw (SPST) air proving switch, it plays a critical role in monitoring the pressure differential created by the draft inducer motor. By sensing a 0.80" WC (Water Column) pressure threshold, it ensures that your heating system has established proper airflow and venting before allowing the ignition sequence to proceed. If your furnace is cycling incorrectly or failing to ignite due to a pressure sensor error, this replacement part provides the precision and reliability needed to restore safe and efficient operation. Engineered for durability, it helps protect against hazardous exhaust buildup by confirming that the venting system is functioning correctly.

Specifications

Type
Air Pressure Switch / Air Proving Switch
Size
Compact
Application
Used in residential and commercial gas-fired furnaces, air handlers, and forced-air heating systems to monitor inducer motor performance and flue venting safety.
Specifications
Switch Logic: SPST (Single Pole Single Throw); Actuation Setpoint: 0.80" 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 773-398 a genuine OEM part?
Yes, the 773-398 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 773-398 is compatible with my BCFurnace furnace?
The easiest way is to match the part number (773-398) 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 773-398 shipped?
Most Air Pressure Switches including the 773-398 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 773-398 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 773-398 is in stock before visiting.

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