Home / Appliance / Parts / Furnace Heat Sequencer 24A34-3 Furnace Heat Sequencer 24A34-3$29.43 Price may not be up-to-date. In Stock View Product Part Number: 24A34-3 Brand: WHITE ROGERS CO. Seller: Sears PartsDirect Categories: Appliance, Parts 60-day return policy Description This heat sequencer (part number 24A34-3) is for furnaces. Heat sequencer 24A34-3 turns the fan motor and heat strips on and off in stages. Disconnect electrical power before installing this part. Wear work gloves to protect your hands.