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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
The CFM Selection Board is a high-performance control circuit designed for modern HVAC systems, specifically focused on regulating airflow and ignition modulating functions. This board plays a vital role in managing the Cubic Feet per Minute (CFM) output of your furnace or air handler, ensuring the blower motor operates at the correct speed for optimal efficiency and climate control. If your heating system is experiencing issues with fan speed regulation or ignition timing, this replacement modulating board is essential for restoring reliable operation. Engineered for precision, it facilitates communication between the system's sensors and the blower motor, helping to maintain consistent indoor temperatures while maximizing energy savings.
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 121-436 is a genuine York OEM part, sourced from an authorized York 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 (121-436) 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 121-436 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 121-436 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.
40 more not shown. Check your own model number above.
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