1-778-759-9864
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BCFurnace

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BCFURNACE

040-090

$24.00

+5% Tax • Shipping calculated at checkout.

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

Name

TEMP SWITCH

1units available

Pickup available at 75 Blue Mountain St #3

Usually ready in 24 hours

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

Product Details

Description

Ensure your HVAC system operates at peak safety and efficiency with this premium Air Pressure Switch. Often referred to as an air proving switch, this component is essential for monitoring airflow within residential heat pumps and cooling systems. It functions as a critical safety sensor, detecting the necessary pressure differentials to 'prove' that the blower motor is moving air before allowing the system to proceed with its heating or cooling cycle. If your unit is experiencing ignition failure, frequent short-cycling, or pressure-related fault codes, replacing a faulty air switch is a common and effective solution. This durable switch is designed to handle the rigorous demands of modern climate control systems, providing reliable performance and protecting your equipment from potential damage caused by inadequate airflow.

Specifications

Type
Air Pressure Switch
Size
Small
Application
Commonly used in residential heat pumps and central air conditioning units to monitor airflow and maintain safety standards during heating and cooling cycles.
Specifications
Pressure-activated safety sensor; designed to detect airflow differentials to allow for safe system operation; replaces faulty or stuck air proving switches.

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 040-090 a genuine OEM part?
Yes, the 040-090 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 040-090 is compatible with my BCFurnace furnace?
The easiest way is to match the part number (040-090) 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 040-090 shipped?
Most Air Pressure Switches including the 040-090 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 040-090 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 040-090 is in stock before visiting.

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