1-778-759-9864
Canada (CAD $) flagCanada (CAD $)
YORK/ETC SWITCH,LIMIT L159-35F Fan Disc, High Limit Control Switches furnace part available in Vancouver, Burnaby, Port Moody, Langley, North Vancouver, Richmond, Maple Ridge, Delta, West Vancouver, New Westminster, Surrey, Coquitlam, Port Coquitlam, Pitt Meadows

YORK/ETC SWITCH,LIMIT L159-35F Fan Disc, High Limit Control Switches

BCFURNACE

122-423

CA$131.79

+5% Tax Shipping calculated at checkout.

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

Name

YORK/ETC SWITCH,LIMIT L159-35F

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 high-limit control switch is an essential safety component for residential and commercial HVAC systems, specifically designed for use in furnaces and air handlers. As a thermal safety device, this fan disc switch monitors the internal heat levels of your heating equipment. It is engineered to automatically open the electrical circuit if the temperature exceeds the safe operating threshold of 159°F, preventing potential damage or hazardous conditions caused by overheating. Once the temperature drops by the 35°F differential, the switch resets to restore normal operation. Replacing a faulty limit switch is critical for maintaining the safety, efficiency, and longevity of your heating system. This durable, surface-mount disc switch provides reliable thermal protection and is a standard replacement part for many forced-air heating applications.

Specifications

Type
Fan Disc High Limit Control Switch
Size
Small
Application
Used as a safety cutout in gas furnaces, electric heaters, and HVAC air handling units to prevent overheating.
Specifications
Temperature Rating: Opens at 159°F; Reset Differential: 35°F (Closes at 124°F); Configuration: Normally Closed (NC); Style: Standard 3/4-inch fan disc.

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 122-423 a genuine OEM part?
Yes, the 122-423 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 122-423 is compatible with my BCFurnace furnace?
The easiest way is to match the part number (122-423) 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 122-423 shipped?
Most Fan Limit Controls including the 122-423 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 122-423 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 122-423 is in stock before visiting.

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