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

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BCFURNACE

100-203

$33.00

+5% Tax • Shipping calculated at checkout.

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

Name

TRANSFORMER F/UGFG

1units available

Pickup available at 75 Blue Mountain St #3

Usually ready in 24 hours

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Local Pickup

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

Product Details

Description

This high-performance furnace transformer is a critical electrical component designed to regulate and step down voltage for residential heating systems. Functioning as a vital link in your HVAC control circuit, it converts primary line voltage into the low-voltage power required to operate thermostats, control boards, and integrated relays. If your furnace is failing to start or the control board isn't receiving power, a replacement transformer is often necessary to restore reliable heating performance. Built for durability and consistent electrical output, this transformer ensures your gas furnace operates safely and efficiently during peak demand. It is an essential repair part for maintaining the electrical integrity of modern heating units.

Specifications

Type
Electrical Transformer / Relay
Size
Standard HVAC Control Size
Application
Used in residential gas furnaces and HVAC systems to provide low-voltage power to control circuits, thermostats, and signaling relays.
Specifications
Step-down voltage conversion; designed for furnace control board power supply; integrated relay functionality for electrical system management.

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 100-203 a genuine OEM part?
Yes, the 100-203 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 100-203 is compatible with my BCFurnace furnace?
The easiest way is to match the part number (100-203) 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 100-203 shipped?
Most electrical-transformers-relay including the 100-203 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 100-203 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 100-203 is in stock before visiting.

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