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BCFurnace
LENNOX PRESSURE SWITCH 0.51" 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 0.51" WC Air Pressure Switch, Air Proving

BCFURNACE

773-138

CA$232.51

+5% Tax • Shipping calculated at checkout.

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

Name

LENNOX PRESSURE SWITCH 0.51" WC

1units available

Pickup available at 75 Blue Mountain St #3

Usually ready in 24 hours

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Product Details

Description

Ensure the safe and efficient operation of your heating system with this premium air pressure switch. Designed as a critical safety component for forced-air furnaces, this air proving switch monitors the negative pressure created by the inducer motor to verify proper airflow before allowing the ignition cycle to begin. Calibrated to a precise 0.51" WC (water column) set point, it acts as a safeguard against dangerous conditions such as blocked vents, flue obstructions, or inducer motor failure. This high-reliability sensor is an essential replacement part for resolving furnace startup issues and ensuring your HVAC equipment meets original performance standards for combustion safety.

Specifications

Type
Air Pressure Switch
Size
Compact
Application
Residential gas furnaces and HVAC heating units requiring combustion air proving and draft pressure monitoring.
Specifications
Pressure Set Point: 0.51" WC; Application: Air Proving; Media: Air

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Frequently Asked Questions

Is the 773-138 a genuine OEM part?
Yes, the 773-138 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 773-138 is compatible with my BCFurnace furnace?
The easiest way is to match the part number (773-138) 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 773-138 shipped?
Most Air Pressure Switches including the 773-138 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 773-138 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 773-138 is in stock before visiting.

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