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

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BCFURNACE

121-929

$68.00

+5% Tax • Shipping calculated at checkout.

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

Name

TRANSFORMER,240V,24V/40A

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 high-quality 240V to 24V step-down transformer is a critical electrical component designed to provide consistent low-voltage power to your appliance's control systems. Engineered for durability and reliable performance, it converts high-voltage incoming power into a safe 24V output, which is essential for operating thermostats, relays, and electronic control boards. This part is a common solution for HVAC systems and large appliances that have lost power to their control circuits or are experiencing non-responsive behavior. Whether you are maintaining a furnace, air conditioner, or heat pump, this transformer ensures that your unit’s internal logic and switching components receive the precise voltage required for safe, efficient operation.

Specifications

Type
Electrical Transformer
Size
Standard Control Transformer
Application
Commonly used in HVAC equipment including furnaces, air handlers, and heat pumps to power thermostats and low-voltage control circuits.
Specifications
Input Voltage: 240V AC; Output Voltage: 24V AC; Power Rating: 40VA; Type: Step-down transformer for control systems.

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 121-929 a genuine OEM part?
Yes, the 121-929 is a genuine OEM replacement part manufactured by BCFurnace. We source all electrical-transformers-relay from authorized distributors to ensure exact-fit compatibility. This electrical-transformers-relay 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 121-929 is compatible with my BCFurnace furnace?
The easiest way is to match the part number (121-929) 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 electrical-transformers-relay 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 121-929 shipped?
Most electrical-transformers-relay including the 121-929 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 121-929 at your store?
Yes! Local pickup is available at our Coquitlam, BC location: 75 Blue Mountain St #3. electrical-transformers-relay orders are usually ready within 24 hours. Call us at 1-778-759-9864 to confirm the 121-929 is in stock before visiting.

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