3" HIGH LIMIT SWITCH L260-40F 3 High Limit Control Switches
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U.S. Duties/Taxes, if applicable, may be due at time of delivery.
Pickup available at 75 Blue Mountain St #3
Usually ready in 24 hours
Not sure this fits your furnace? Call us — we're happy to help
Ensure the safety and efficiency of your residential heating system with this professional-grade 3-inch high limit switch. Designed as a critical thermal safeguard, this furnace limit control monitors the heat exchanger's temperature to prevent overheating. When temperatures exceed the safe operating threshold, the switch automatically interrupts the burner circuit, protecting your HVAC equipment from damage and ensuring home safety. This replacement thermal sensor is essential for furnace repair when the existing switch fails to cycle properly or causes the system to shut down prematurely. Featuring a 260°F cutout and a 40°F reset differential, it provides reliable, long-lasting performance for standard forced-air heating systems.
Our team is happy to help you verify compatibility before you order. We'll confirm it fits your specific furnace model.
1-778-759-9864Mon–Sat 8AM–5PM PT · Or email parts@bcfurnace.com
Compatible parts and related replacements
Yes, the 543-260 is a genuine OEM, or a factory replacement manufacturer approved part. We source all 3 Limit Switches from authorized distributors to ensure exact-fit compatibility. This 3 Limit Switch is backed by our 100% compatibility guarantee — if it doesn't fit your furnace, we'll make it right.
The easiest way is to match the part number (543-260) with your furnace model number. Visit the homepage 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.
Most 3 Limit Switches including the 543-260 ship within 1–2 business days from our warehouse. We ship across Canada and the United States, and worldwide, with tracking on every order. For urgent furnace repairs, contact us at 1-778-759-9864 for expedited shipping options.
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 543-260 is in stock before visiting.
Still not sure this is the right part? Call 1-778-759-9864 and we will check your model number with you.
The model number is on the rating plate inside the furnace door.
109 more not shown. Check your own model number above.
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