1-778-759-9864
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BCFurnace

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BCFURNACE

021-889

$40.00

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

Product Details

Description

This premium High Pressure SPST Switch is a critical safety component designed for high-performance HVAC systems, including residential and commercial air conditioning units and heat pumps. As an essential air-proving and pressure-monitoring device, this switch is engineered to automatically open the electrical circuit when system pressure reaches 650 PSI. By acting as a safety cutout, it protects the compressor and other vital components from damage caused by excessive internal pressure, which can result from restricted airflow, condenser fan failure, or refrigerant issues. This Single Pole Single Throw (SPST) switch ensures your cooling system operates within safe parameters, preventing expensive equipment failure and maintaining efficient climate control.

Specifications

Type
HVAC Pressure Switch
Size
Standard compact component
Application
Used as a safety limit control in central air conditioners, heat pumps, and forced-air cooling systems to monitor refrigerant line pressure.
Specifications
Configuration: SPST (Single Pole Single Throw); Cut-out Pressure: 650 PSI; Function: Opens on pressure rise; Type: High-pressure safety switch.

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 021-889 a genuine OEM part?
Yes, the 021-889 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 021-889 is compatible with my BCFurnace furnace?
The easiest way is to match the part number (021-889) 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 021-889 shipped?
Most Air Pressure Switches including the 021-889 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 021-889 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 021-889 is in stock before visiting.

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