1-778-759-9864
Canada (CAD $) flagCanada (CAD $)
BCFurnace
Air Shield 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 Shield Air Pressure Switch, Air Proving

BCFURNACE

121-293

CA$283.75

+5% Tax • Shipping calculated at checkout.

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

Name

Air Shield

1units available

Pickup available at 75 Blue Mountain St #3

Usually ready in 24 hours

Secure Payment
Fast Delivery
Local Pickup

Not sure this fits your furnace? Call us — we're happy to help

Product Details

Description

This premium Air Pressure Switch, also known as an air proving switch or air shield, is a vital safety component for residential and commercial heating systems. Designed to monitor the airflow within your furnace or HVAC unit, this switch ensures that the inducer motor is creating the necessary draft before allowing the ignition process to begin. By verifying proper ventilation and exhaust, it prevents the buildup of dangerous gases and ensures efficient combustion. If your heating system is failing to ignite, short-cycling, or displaying a pressure switch lockout error, this high-precision sensor is the ideal replacement part to restore safe and reliable operation to your furnace.

Specifications

Type
Air Pressure Switch
Size
Small
Application
Commonly used in forced-air furnaces, boilers, and high-efficiency heating systems to verify inducer fan performance and flue venting safety.
Specifications
Pressure-sensitive diaphragm mechanism; electrical terminal connections for seamless integration; designed to detect specific vacuum or pressure thresholds for system safety interlocks.

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 121-293 a genuine OEM part?
Yes, the 121-293 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 121-293 is compatible with my BCFurnace furnace?
The easiest way is to match the part number (121-293) 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 121-293 shipped?
Most Air Pressure Switches including the 121-293 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 121-293 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 121-293 is in stock before visiting.

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