1-778-759-9864
United States (USD $) flagUnited States (USD $)
BCFurnace

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BCFURNACE

121-446

$1,621.00

+5% Tax • Shipping calculated at checkout.

U.S. Duties/Taxes, if applicable, may be due at time of delivery.

Name

BOARD,CONTROL,DIRECT SPARK, MODULATING

1units available

Pickup available at 75 Blue Mountain St #3

Usually ready in 24 hours

Secure Payment
Fast Delivery
Local Pickup

Not sure this fits your furnace? Call us — we're happy to help

Product Details

Description

This advanced Modulating Direct Spark Ignition (DSI) Control Board is a critical electronic component designed for high-efficiency gas furnaces and HVAC heating systems. As the primary brain of the heating unit, this circuit board manages the ignition sequence, monitors flame safety, and precisely regulates the modulating gas valve to ensure optimal temperature consistency and energy efficiency. It is an essential replacement part if your furnace is failing to ignite, experiencing irregular heating cycles, or showing signs of control module failure. Engineered for reliability, this board provides the sophisticated logic required for modern modulating heating appliances, helping to restore comfort and peak performance to your climate control system.

Specifications

Type
Ignition Control Board
Size
Medium
Application
Used in residential and commercial gas furnaces, high-efficiency HVAC systems, and modulating heating units featuring direct spark ignition technology.
Specifications
Integrated direct spark ignition (DSI), modulating heat output control, flame sensing safety circuitry, diagnostic LED indicators, and multi-pin wiring harness compatibility.

Not sure this is the right part?

Our team is happy to help you verify compatibility before you order. We'll confirm it fits your specific furnace model.

1-778-759-9864

Mon–Sat 8AM–9PM PST · Or email parts@bcfurnace.com

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Frequently Asked Questions

Is the 121-446 a genuine OEM part?
Yes, the 121-446 is a genuine OEM replacement part manufactured by BCFurnace. We source all Control Boards from authorized distributors to ensure exact-fit compatibility. This Control Boards is backed by our 100% compatibility guarantee — if it doesn't fit your furnace, we'll make it right.
How do I know if the 121-446 is compatible with my BCFurnace furnace?
The easiest way is to match the part number (121-446) with your furnace model number. Visit the BCFurnace page on our site 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.
How fast can I get the 121-446 shipped?
Most Control Boards including the 121-446 ship within 1–2 business days from our warehouse. We ship across Canada and the United States with tracking on every order. For urgent BCFurnace repairs, contact us at 1-778-759-9864 for expedited shipping options.
Can I pick up the 121-446 at your store?
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 121-446 is in stock before visiting.

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