1-778-759-9864
Canada (CAD $) flagCanada (CAD $)
BCFurnace

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BCFURNACE

120-821

CA$110.74

+5% Tax • Shipping calculated at checkout.

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

Name

CONTROL,LIMIT,OPEN 185/CLOSE 155

1units available

Pickup available at 75 Blue Mountain St #3

Usually ready in 24 hours

Secure Payment
Fast Delivery
Local Pickup

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

Product Details

Description

This High Limit Control Fan Disc Switch is a critical safety component designed for heating systems and HVAC equipment. Functioning as a thermal protection device, it prevents equipment from overheating by opening the electrical circuit when the internal temperature reaches 185 degrees Fahrenheit. Once the system cools down to a safe 155 degrees Fahrenheit, the switch automatically closes, restoring operation. Whether you are repairing a residential furnace or a commercial heating unit, this high-quality disc switch ensures reliable temperature regulation and equipment longevity. It is an essential replacement part for maintaining the safe and efficient operation of forced-air heating systems and prevents potential damage caused by excessive heat buildup.

Specifications

Type
Fan Disc High Limit Control Switch
Size
Small
Application
Commonly used in furnaces, air handlers, and forced-air heating systems to monitor heat exchanger temperatures and provide safety shut-off capabilities.
Specifications
Opening Temperature: 185°F; Closing Temperature: 155°F; Automatic reset; Snap-action disc sensor.

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 120-821 a genuine OEM part?
Yes, the 120-821 is a genuine OEM replacement part manufactured by BCFurnace. We source all Fan Limit Controls from authorized distributors to ensure exact-fit compatibility. This Fan Limit Controls 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 120-821 is compatible with my BCFurnace furnace?
The easiest way is to match the part number (120-821) 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 Fan Limit Controls 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 120-821 shipped?
Most Fan Limit Controls including the 120-821 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 120-821 at your store?
Yes! Local pickup is available at our Coquitlam, BC location: 75 Blue Mountain St #3. Fan Limit Controls orders are usually ready within 24 hours. Call us at 1-778-759-9864 to confirm the 120-821 is in stock before visiting.

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