1-778-759-9864
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BCFurnace
AIR PRESSURE SWITCH SINGLE PORT 0.50" 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

AIR PRESSURE SWITCH SINGLE PORT 0.50" WC Air Pressure Switch, Air Proving

BCFURNACE

773-331

CA$194.48

+5% Tax • Shipping calculated at checkout.

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

Name

AIR PRESSURE SWITCH SINGLE PORT 0.50" 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

This premium single-port air pressure switch is a vital safety component designed for modern HVAC and furnace systems. Engineered to monitor the pressure differential within the combustion chamber, this air proving switch ensures that the inducer fan is creating the necessary draft for safe exhaust venting before allowing the ignition process to begin. With a precision set point of 0.50" WC (Water Column), it effectively detects venting obstructions or motor failures, preventing the appliance from operating under unsafe conditions. If your heating system is experiencing ignition failure or throwing pressure-related error codes, this reliable replacement part helps restore consistent performance and peace of mind. Its durable construction is built to handle the rigors of frequent heating cycles in residential and light commercial applications.

Specifications

Type
Air Pressure Switch
Size
Standard compact HVAC switch
Application
Commonly used in forced-air furnaces, gas-fired heating units, and HVAC systems to verify proper airflow and inducer motor operation.
Specifications
Single port configuration; Pressure setting: 0.50" WC; Function: Air proving and safety limit monitoring.

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 773-331 a genuine OEM part?
Yes, the 773-331 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 773-331 is compatible with my BCFurnace furnace?
The easiest way is to match the part number (773-331) 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 773-331 shipped?
Most Air Pressure Switches including the 773-331 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 773-331 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 773-331 is in stock before visiting.

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