1-778-759-9864
Canada (CAD $) flagCanada (CAD $)
BCFurnace
PRESSURE SWITCH 2-STG 0.2" WC / 0.5" 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

PRESSURE SWITCH 2-STG 0.2" WC / 0.5" WC Air Pressure Switch, Air Proving

BCFURNACE

773-042

CA$139.75

+5% Tax • Shipping calculated at checkout.

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

Name

PRESSURE SWITCH 2-STG 0.2" WC / 0.5" WC

1units available

Pickup available at 75 Blue Mountain St #3

Usually ready in 24 hours

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Product Details

Description

This premium 2-stage air pressure switch is a critical safety component designed for high-efficiency gas furnaces and HVAC heating systems. Functioning as an air proving switch, it monitors the pressure differential created by the draft inducer motor to ensure that combustion gases are being safely exhausted before the ignition sequence begins. Featuring dual setpoints of 0.2" WC and 0.5" WC, this part prevents the heating system from operating under unsafe conditions, such as a blocked flue or a failing vent motor. If your furnace is failing to ignite or showing pressure-related error codes, this durable replacement switch ensures reliable performance, peak heating efficiency, and continued home safety.

Specifications

Type
Air Pressure Switch
Size
Standard
Application
Used in multi-stage gas furnaces, forced-air heating units, and residential HVAC systems to prove inducer motor airflow.
Specifications
Two-stage (2-STG) operation; Actuation points: 0.2" WC and 0.5" WC; Air proving safety functionality.

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Frequently Asked Questions

Is the 773-042 a genuine OEM part?
Yes, the 773-042 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 773-042 is compatible with my BCFurnace furnace?
The easiest way is to match the part number (773-042) 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 773-042 shipped?
Most Air Pressure Switches including the 773-042 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 773-042 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 773-042 is in stock before visiting.

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