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Pickup available at 75 Blue Mountain St #3, Coquitlam
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 heating system with this professional-grade 7-inch high limit control switch. Designed as a critical safety feature for residential and commercial furnaces, this thermal limit switch monitors heat exchanger temperatures to prevent overheating. When the internal temperature reaches its safety threshold, the switch automatically interrupts the heating cycle, protecting your HVAC equipment from damage and reducing fire risks. This component is essential for forced air systems and gas furnaces that require a reliable thermal cutout with a 7-inch insertion depth for accurate airflow temperature sensing.
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 547-280 is a genuine Lennox OEM part, sourced from an authorized Lennox parts distributor. This 7 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 (547-280) with your furnace model number. Visit the homepage and enter your model number in the search bar — our system will show all compatible 7 Limit Switches for your specific unit. You can also call our technicians at 1-778-759-9864 for free compatibility verification.
Most 7 Limit Switches including the 547-280 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. 7 Limit Switches orders are usually ready within 24 hours. Call us at 1-778-759-9864 to confirm the 547-280 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.
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