1-778-759-9864
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BCFurnace

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BCFURNACE

021-901

$14.00

+5% Tax • Shipping calculated at checkout.

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

Name

SWITCH-LOW PRESSURE BZ

1units available

Pickup available at 75 Blue Mountain St #3

Usually ready in 24 hours

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Local Pickup

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

Product Details

Description

This high-quality low-pressure air switch is a vital safety and performance component for residential and commercial HVAC systems. Designed to function as an air proving switch, it monitors the internal pressure levels within your air conditioning or heat pump unit to ensure optimal operation. By detecting low-pressure conditions, it protects the compressor from potential damage caused by refrigerant loss or airflow restrictions. This precision-engineered switch is essential for maintaining system efficiency, preventing costly equipment failure, and ensuring consistent climate control. Ideal for HVAC technicians and DIY repairs, this durable component provides reliable pressure sensing and long-term stability in demanding environments.

Specifications

Type
Air Pressure Switch
Size
Small
Application
Used in central air conditioning systems, heat pumps, and HVAC units to monitor refrigerant pressure and provide low-pressure cutout protection.
Specifications
Low-pressure sensing, air proving functionality, SPST or DPST configuration typical for HVAC safety circuits.

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 021-901 a genuine OEM part?
Yes, the 021-901 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 021-901 is compatible with my BCFurnace furnace?
The easiest way is to match the part number (021-901) 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 021-901 shipped?
Most Air Pressure Switches including the 021-901 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 021-901 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 021-901 is in stock before visiting.

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