1-778-759-9864
United States (USD $) flagUnited States (USD $)
BCFurnace

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BCFURNACE

121-440

$784.00

+5% Tax • Shipping calculated at checkout.

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

Name

TRANSDUCER,PRESSURE

1units available

Pickup available at 75 Blue Mountain St #3

Usually ready in 24 hours

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Fast Delivery
Local Pickup

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

Product Details

Description

This high-quality pressure transducer is a critical safety and diagnostic component for residential and commercial HVAC systems. Functioning as an air pressure switch or air proving sensor, it monitors the airflow and pressure differentials within your furnace or air handler to ensure the inducer motor is creating the necessary draft for safe operation. A precision-engineered transducer is essential for proper ignition and consistent heating cycles. If your system is failing to start, shutting down prematurely, or displaying pressure-related error codes, this replacement sensor can restore reliable performance and ensure your equipment operates within its designed safety parameters.

Specifications

Type
Air Pressure Switch / Transducer
Size
Small
Application
Commonly used in forced-air furnaces, heat pumps, and air conditioning units to monitor draft inducer pressure and verify proper venting and airflow before and during operation.
Specifications
Precision air pressure monitoring, integrated safety shut-off compatibility, designed for high-cycle durability in HVAC environments.

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 121-440 a genuine OEM part?
Yes, the 121-440 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 121-440 is compatible with my BCFurnace furnace?
The easiest way is to match the part number (121-440) 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 121-440 shipped?
Most Air Pressure Switches including the 121-440 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 121-440 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 121-440 is in stock before visiting.

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