1-778-759-9864
Canada (CAD $) flagCanada (CAD $)
BCFurnace
3" HIGH LIMIT SWITCH L190-20F 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 L190-20F 3 High Limit Control Switches

BCFURNACE

543-035

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 L190-20F

6units 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-inch High Limit Switch L190-20F is a vital safety component designed for HVAC systems, gas furnaces, and electric heating appliances. This thermal cutout switch acts as a failsafe, monitoring the internal temperature of your equipment to prevent overheating. When the ambient temperature reaches the fixed set point of 190°F, the switch opens the electrical circuit to shut down the heating element or burner, protecting the appliance from damage and ensuring home safety. Featuring a 20°F differential, the switch automatically resets once the temperature drops, allowing for continued operation. This durable high-limit thermostat is an essential replacement part for maintaining the reliability and efficiency of residential and commercial heating units.

Specifications

Type
High Limit Thermostat Control Switch
Size
3-inch insertion depth
Dimensions
3 inches
Application
Commonly used in forced air furnaces, unit heaters, HVAC air handlers, and clothes dryers to provide over-temperature protection.
Specifications
Cut-out temperature: 190°F; Differential/Reset: 20°F; Configuration: Normally Closed (NC); Mount type: Flange mount

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 543-035 a genuine OEM part?
Yes, the 543-035 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 543-035 is compatible with my BCFurnace furnace?
The easiest way is to match the part number (543-035) 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 543-035 shipped?
Most 3 Limit Switches including the 543-035 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 543-035 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 543-035 is in stock before visiting.

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