1-778-759-9864
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BCFurnace
YORK/ETC PRESSURE SWITCH 0.65" 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 0.65" WC Air Pressure Switch, Air Proving

BCFURNACE

773-388

CA$131.13

+5% Tax • Shipping calculated at checkout.

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

Name

YORK/ETC PRESSURE SWITCH 0.65" 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 Air Pressure Switch is a critical safety component designed for high-efficiency furnaces and HVAC systems. Also known as an air proving switch, its primary function is to monitor the draft inducer motor's performance by sensing the pressure differential created during operation. Rated at 0.65" WC (Water Column), this switch ensures that your heating system only initiates the ignition sequence when proper airflow and venting are detected. A failing or faulty pressure switch is a common cause of furnace lockout or ignition failure, making this an essential replacement part for restoring reliable heat and ensuring safe operation. Engineered for durability and precision, it helps maintain peak performance in residential and commercial forced-air heating applications.

Specifications

Type
Air Pressure Switch
Size
Standard HVAC Component
Application
Used in gas-fired furnaces and HVAC units to monitor inducer motor airflow and ensure proper venting before ignition.
Specifications
Pressure Setting: 0.65" WC; Function: Air Proving; Sensing Type: Negative Pressure/Vacuum.

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 773-388 a genuine OEM part?
Yes, the 773-388 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 773-388 is compatible with my BCFurnace furnace?
The easiest way is to match the part number (773-388) 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 773-388 shipped?
Most Air Pressure Switches including the 773-388 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 773-388 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 773-388 is in stock before visiting.

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