+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 premium ignition modulating control board serves as the central processing hub for your HVAC system, ensuring precise communication between your thermostat and heating components. Designed for high-efficiency American Standard and Trane furnaces, this circuit board manages the critical ignition sequence, monitors safety switches, and regulates the blower motor for optimal airflow. A faulty control board can lead to common issues such as intermittent heating, failure to ignite, or unresponsive blowers; replacing the unit restores consistent climate control and system reliability. This modulating version is specifically engineered to handle variable heat outputs, providing superior energy efficiency and more stable indoor temperatures compared to standard single-stage boards.
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
The 446-021 is a replacement part. Match your furnace model number on our site to confirm the fit. 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 (446-021) 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 446-021 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 446-021 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.
Looking for more Control Boards?
