UPGRADE FROM THE OBSOLETE FOR LENNOX CARRIER TRANE & YORK CONTROL BOARD REPLACEMENT KIT, M1-8, 446-090, 031-02951-001
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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
The 50X57-843 Upgrade Control Board Replacement Kit is a high-performance ignition and modulation solution designed to replace obsolete circuit boards in premium HVAC systems. This integrated furnace control module manages the critical timing of the ignition sequence, gas valve operation, and blower motor functions to ensure peak energy efficiency and consistent climate control. Engineered for reliability, this kit provides a modern upgrade for older commercial and residential heating units, resolving common issues such as intermittent heating, ignition failure, or unresponsive system controls. It serves as a versatile electronic interface for technicians looking to restore functionality to Lennox, Carrier, Trane, and York systems using a consolidated, robust design that meets or exceeds original equipment manufacturer standards.
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 446-090 is a genuine OEM, or a factory replacement manufacturer approved part. We source all Control Boards from authorized distributors to ensure exact-fit compatibility. This Control Board 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 (446-090) with your furnace model number. Visit the homepage and enter your model number in the search bar — our system will show all compatible Control Boards for your specific unit. You can also call our technicians at 1-778-759-9864 for free compatibility verification.
Most Control Boards including the 446-090 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. Control Boards orders are usually ready within 24 hours. Call us at 1-778-759-9864 to confirm the 446-090 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.
236 more not shown. Check your own model number above.
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