1-778-759-9864
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BCFurnace
LENNOX PRESSURE SWITCH 1.61" 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

LENNOX PRESSURE SWITCH 1.61" WC Air Pressure Switch, Air Proving

BCFURNACE

773-159

CA$329.02

+5% Tax • Shipping calculated at checkout.

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

Name

LENNOX PRESSURE SWITCH 1.61" WC

Replaces part numbers

57M69, 12W52, 20293412, 57M6901, 92L21, 92L2101, IS20151-3440, R20293412, 1244D3/A

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 high-performance air pressure switch is a critical safety component designed for high-efficiency forced-air furnaces and heating systems. Specifically calibrated to a 1.61" WC (Water Column) set point, this air proving switch ensures that the inducer blower motor is creating the proper draft for safe combustion. If your furnace is failing to ignite or displaying common pressure switch error codes, this reliable replacement part monitors airflow to allow for safe ignition sequences. Built for durability and precise pressure sensing, it helps prevent the heating system from operating under obstructed venting or unsafe exhaust conditions, making it an essential component for routine HVAC maintenance and repair.

Specifications

Type
Air Pressure Switch
Size
Compact
Application
Gas-fired furnaces, residential heating systems, and HVAC inducer motor air-proving applications.
Specifications
Pressure Set Point: 1.61" WC (Water Column), Switch Type: Air Proving / Safety Interlock

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 773-159 a genuine OEM part?
Yes, the 773-159 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 773-159 is compatible with my BCFurnace furnace?
The easiest way is to match the part number (773-159) 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 773-159 shipped?
Most Air Pressure Switches including the 773-159 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 773-159 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 773-159 is in stock before visiting.

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