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This OEM furnace control board (part #1184783, CONTROL BOARD) is the integrated ignition and blower control module for the ICP/Heil/Tempstar WFAR100C048B1. It is the brain of the furnace: it sequences the ignition cycle, fires the hot surface igniter, opens the gas valve, monitors flame and the pressure/limit safety chain, and times the blower on and off. When the board fails, symptoms range from a completely dead furnace to no ignition, no blower, short cycling, or repeated lockouts with diagnostic LED fault codes. Boards are damaged by power surges, moisture, failed components downstream, or simple age. This OEM board matches the factory firmware, relay layout, and connector pinout so the wiring harness lands exactly where it came off.
| Spec | Value |
|---|---|
| Part Number | 1184783 |
| Type | Integrated Furnace Control Board |
| Brand | ICP / Heil / Tempstar |
| Function | Ignition, Blower & Safety Control |
| Application | Gas Furnace |
| Fitment | OEM |
Engineered for the ICP/Heil/Tempstar WFAR100C048B1 and matching WFAR-series furnaces that shipped with this integrated control board. Match your existing board's part number and connector layout before installing.
Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.