ARMSTRONG AIR LENNOX ROLLOUT SWITCH L185F Flame Rollout Switch
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Not sure this fits your furnace? Call us — we're happy to help
Ensure the safety and reliability of your residential heating system with this high-quality flame rollout switch, designed for compatibility with Armstrong Air and Lennox gas furnaces. This essential safety component is engineered to detect 'flame rollout'—a condition where flames escape the combustion chamber—by monitoring the temperature near the burner assembly. Once the switch reaches its calibrated thermal limit, it interrupts the electrical circuit to shut down the gas valve, preventing potential equipment damage or hazardous conditions. Featuring a manual reset design, this limit switch is a critical replacement part for HVAC maintenance and repair, ensuring your furnace operates within strict safety parameters. If your heating system is frequently tripping or failing to sustain a flame, replacing a worn or faulty rollout switch can restore proper functionality and peace of mind.
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 765-023 is a genuine OEM, or a factory replacement manufacturer approved part. We source all Flame Rollout Switch from authorized distributors to ensure exact-fit compatibility. This Flame Rollout 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 (765-023) with your furnace model number. Visit the homepage and enter your model number in the search bar — our system will show all compatible Flame Rollout Switch for your specific unit. You can also call our technicians at 1-778-759-9864 for free compatibility verification.
Most Flame Rollout Switch including the 765-023 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. Flame Rollout Switch orders are usually ready within 24 hours. Call us at 1-778-759-9864 to confirm the 765-023 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.
50 more not shown. Check your own model number above.
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