+5% Tax • Shipping calculated at checkout.
U.S. Duties/Taxes, if applicable, may be due at time of delivery.
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
This professional-grade HVAC control board is a vital electronic component designed for high-efficiency modulating gas furnaces and heating systems. As a central ignition and modulation controller, this circuit board manages the critical sequence of operations, including flame sensing, gas valve regulation, and blower motor timing. It is an essential replacement part for restoring reliability to systems experiencing ignition failures, intermittent heating, or communication errors between system components. By precisely controlling the modulation of the furnace, this board ensures optimal energy efficiency and consistent indoor climate control. Built with robust circuitry to withstand the thermal demands of HVAC environments, it serves as the primary diagnostic hub for troubleshooting and maintaining peak performance in residential and light commercial units.
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 446-103 is a genuine Carrier OEM part, sourced from an authorized Carrier parts distributor. 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 (446-103) 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 446-103 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 446-103 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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