Genuine OEM Harman & Heatilator replacement furnace fan limit switch, part number 3-20-23139. The furnace fan limit switch mounts in the plenum and controls the on/off cycle of the blower according to perimeters set. This will be the correct replacement for the Harman PF100, PF120, SF1500A, SF2500A, SF2600SS, and SF3500A furnace models. Correct for Heatilator Eco-Choice BA100 and BIO-120 pellet furnace models.
Furnace Fan Limit Switch Assembly
Guaranteed Newest Stock Inventory
1 Year Manufacturer Warranty
Installation & Function: Fan Limit Switch Mounts inside the heat plenum just above the unit; controls the blower on/off settings.
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