1-778-759-9864
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BCFurnace

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BCFURNACE

021-888

$41.00

+5% Tax • Shipping calculated at checkout.

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

Name

SWITCH; HIGH PRESSURE, SPST, OPEN @ 650

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-pressure switch is a vital safety component designed for HVAC systems, including central air conditioning units and heat pumps. Functioning as a high-pressure cutout, this Single Pole Single Throw (SPST) switch monitors the refrigerant pressure within the system to prevent compressor damage. When the internal pressure reaches the safety threshold of 650 PSI, the switch opens the electrical circuit, immediately shutting down the equipment to prevent catastrophic failure or leaks. Engineered for durability and precision, this air pressure switch is an essential replacement part for maintaining the longevity and operational safety of high-performance heating and cooling equipment.

Specifications

Type
High Pressure Switch / Air Proving Switch
Size
Small
Application
Used in residential and commercial HVAC systems, specifically packaged heat pumps and central air conditioning units to monitor refrigerant line pressure.
Specifications
Configuration: Single Pole Single Throw (SPST); Action: Opens on pressure rise; Cut-out pressure: 650 PSI; Function: High-pressure safety limit.

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 021-888 a genuine OEM part?
Yes, the 021-888 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 021-888 is compatible with my BCFurnace furnace?
The easiest way is to match the part number (021-888) 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 021-888 shipped?
Most Air Pressure Switches including the 021-888 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 021-888 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 021-888 is in stock before visiting.

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