1-778-759-9864
United States (USD $) flagUnited States (USD $)
BCFurnace
Lennox 3" l190-30, 543-061 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

Lennox 3" l190-30, 543-061

BCFURNACE

543-061

$66.00

+5% Tax • Shipping calculated at checkout.

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

Name

Lennox 3" l190-30

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

Ensure the safety and efficiency of your heating system with this premium High Limit Control Switch. Designed as a critical safety mechanism for forced-air furnaces and HVAC units, this thermal limit switch monitors internal air temperatures to prevent overheating. When the system reaches a specified heat threshold, the switch automatically interrupts the circuit to the burner or heating element, protecting your equipment from heat damage and ensuring operational safety. This high-quality replacement part is essential for HVAC repair and routine maintenance, featuring a reliable bimetal sensor that provides accurate temperature detection and a consistent response. It is an ideal solution for restoring proper furnace cycles and preventing system failure due to faulty thermal sensors.

Specifications

Type
High Limit Control Switch
Size
3-inch probe
Dimensions
3 in
Application
Commonly used in residential and commercial gas furnaces, electric heaters, and air handling units as a primary safety cutout to prevent heat exchanger damage.
Specifications
Temperature Limit: 190°F Cut-out; 30°F Differential; L190-30 style thermal protection

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 543-061 a genuine OEM part?
Yes, the 543-061 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 543-061 is compatible with my BCFurnace furnace?
The easiest way is to match the part number (543-061) 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 543-061 shipped?
Most 3 Limit Switches including the 543-061 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 543-061 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 543-061 is in stock before visiting.

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