1-778-759-9864
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BCFurnace
YORK/ETC PRESSURE SWITCH 0.85" WC 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

YORK/ETC PRESSURE SWITCH 0.85" WC Air Pressure Switch, Air Proving

BCFURNACE

773-366

CA$278.90

+5% Tax • Shipping calculated at checkout.

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

Name

YORK/ETC PRESSURE SWITCH 0.85" WC

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

Ensure the safety and efficiency of your heating system with this high-performance air pressure switch. Specifically designed for HVAC applications, this air proving switch monitors the negative pressure created by the inducer fan to confirm proper venting before allowing the furnace to ignite. Rated at a precise 0.85" WC (Water Column), it serves as a critical fail-safe, preventing the operation of the heating unit if a blockage or mechanical failure is detected in the exhaust system. This replacement component is essential for troubleshooting furnace startup issues and maintaining reliable indoor climate control in residential or commercial settings.

Specifications

Type
Air Pressure Switch
Size
Standard
Application
Used in forced-air furnaces and HVAC systems to monitor combustion air flow and inducer motor performance.
Specifications
Pressure Rating: 0.85" WC (Water Column); Function: Air Proving/Safety Cut-off; Compatibility: York and ETC-style heating units.

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 773-366 a genuine OEM part?
Yes, the 773-366 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 773-366 is compatible with my BCFurnace furnace?
The easiest way is to match the part number (773-366) 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 773-366 shipped?
Most Air Pressure Switches including the 773-366 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 773-366 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 773-366 is in stock before visiting.

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