1-778-759-9864
Canada (CAD $) flagCanada (CAD $)
BCFurnace
Relay, Sequencer, Heat, 24 Volt Electrical, Transformers, Relay furnace part available in Vancouver, Burnaby, Port Moody, Langley, North Vancouver, Richmond, Maple Ridge, Delta, West Vancouver, New Westminster, Surrey, Coquitlam, Port Coquitlam, Pitt Meadows

Relay, Sequencer, Heat, 24 Volt Electrical, Transformers, Relay

BCFURNACE

121-670

CA$238.61

+5% Tax • Shipping calculated at checkout.

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

Name

Relay, Sequencer, Heat, 24 Volt

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-performance 24-volt heat sequencer relay is a vital electrical component designed for electric furnaces, air handlers, and HVAC heating systems. As a critical timing control, it manages the sequential activation and deactivation of heating elements and blower motors to prevent electrical surges and ensure consistent airflow. By staging the heating stages, this relay helps maintain optimal energy efficiency and protects your home's circuit breaker from tripping during startup. It is an ideal replacement part for HVAC systems experiencing issues with delayed heating, fan motor malfunctions, or inefficient temperature regulation. Built for durability and reliable thermal operation, this sequencer ensures your climate control system operates smoothly throughout the heating season.

Specifications

Type
HVAC Heating Sequencer Relay
Size
Standard electrical component
Application
Used in electric furnaces, heat pump air handlers, and residential heating units to control the timing of heating elements and blower motor operation.
Specifications
24-volt control circuit; thermal timing operation; multi-terminal connectivity; designed for heavy-duty HVAC applications.

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 121-670 a genuine OEM part?
Yes, the 121-670 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 121-670 is compatible with my BCFurnace furnace?
The easiest way is to match the part number (121-670) 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 121-670 shipped?
Most electrical-transformers-relay including the 121-670 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 121-670 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 121-670 is in stock before visiting.

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