1-778-759-9864
Canada (CAD $) flagCanada (CAD $)
BCFurnace
3" HIGH LIMIT SWITCH L175-20F 3 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

3" HIGH LIMIT SWITCH L175-20F 3 High Limit Control Switches

BCFURNACE

543-034

CA$68.83

+5% Tax • Shipping calculated at checkout.

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

Name

3" HIGH LIMIT SWITCH L175-20F

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

The 3" High Limit Switch L175-20F is an essential safety component designed for heating systems and large appliances. This thermal limit control acts as a critical fail-safe, monitoring internal temperatures to prevent overheating and potential equipment damage. Specifically engineered to open the electrical circuit when temperatures reach 175 degrees Fahrenheit and reset once the temperature drops by a 20-degree differential, it ensures your heating unit operates within safe parameters. Ideal for HVAC maintenance and appliance repair, this high-limit thermostat is built for durability and precision in high-heat environments. Replacing a faulty limit switch is a vital step in restoring the safety and efficiency of your furnace or heating assembly.

Specifications

Type
High Limit Control Switch
Size
3-inch
Dimensions
3 inches
Application
Commonly used in residential furnaces, HVAC heating systems, and industrial drying equipment to monitor air temperature and provide over-temperature protection.
Specifications
Cut-out temperature: 175°F; Reset temperature: 155°F (20°F differential); Circuit: Normally Closed (NC); 3-inch insertion depth/bracket size.

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 543-034 a genuine OEM part?
Yes, the 543-034 is a genuine OEM replacement part manufactured by BCFurnace. We source all 3 Limit Switches from authorized distributors to ensure exact-fit compatibility. This 3 Limit 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 543-034 is compatible with my BCFurnace furnace?
The easiest way is to match the part number (543-034) 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 3 Limit 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 543-034 shipped?
Most 3 Limit Switches including the 543-034 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 543-034 at your store?
Yes! Local pickup is available at our Coquitlam, BC location: 75 Blue Mountain St #3. 3 Limit Switches orders are usually ready within 24 hours. Call us at 1-778-759-9864 to confirm the 543-034 is in stock before visiting.

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