ICP Furnace Control Board for WFAR120D066B1 — OEM Integrated Ignition Control | Ships Today
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Overview
This OEM integrated furnace control board, part number 1184783, is the factory-specified circuit board for the ICP Tempstar Heil WFAR120D066B1 gas furnace. The control board is the brain of the furnace — it manages the ignition sequence, monitors safety limits and pressure switches, energizes the igniter and gas valve, and controls blower and inducer timing. When the board fails, the furnace may fail to start, short-cycle, lock out, run the blower continuously, or throw error codes on its diagnostic LED. Replacing a failed control board restores safe, sequenced operation and resolves the intermittent electrical faults that mimic many other component failures.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1184783 |
| Type | Integrated Furnace Control Board |
| Brand | ICP / Tempstar / Heil |
| Function | Ignition, Safety & Blower Control |
| Fits Model | WFAR120D066B1 |
| Application | Gas Furnace |
| Fit | OEM Direct Replacement |
Compatibility
Engineered for the ICP Tempstar Heil WFAR120D066B1 furnace and interchangeable across ICP-family brands (Comfortmaker, Heil, Tempstar, Arcoaire) that share this control platform. Confirm the OEM part number printed on your existing board before ordering, as ICP uses several board revisions.
Installation Guide
- Safety First — Disconnect power at the furnace switch and breaker, and verify zero voltage with a multimeter.
- Access — Remove the furnace control compartment service panel.
- Document — Photograph every wire harness and terminal on the board before disconnecting anything.
- Remove — Unplug each connector, remove the board mounting screws, and lift out the old control board.
- Install — Mount the new board, transfer any jumpers or settings, and reconnect every harness exactly per your photo.
- Test — Restore power and run a full heat cycle, watching the diagnostic LED to confirm normal sequencing and no fault codes.
Signs You Need a Replacement
- Furnace will not start or randomly fails to ignite
- Blower or inducer runs continuously or not at all
- Repeated lockouts or flashing diagnostic error codes
- Burned, corroded, or scorched traces and relays on the board
Shipping & Returns
Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.
Shipping Information
- Orders placed before 3PM CST ship same business day
- Standard delivery: 2-5 business days
- Express shipping available at checkout
- Free shipping on orders over $75
- Tracking number emailed upon shipment
Return Policy
- 30-day returns on unused parts in original packaging
- Electrical parts (capacitors, contactors, control boards) are final sale once installed
- Email info@nationalhvacparts.com to initiate a return
- Refunds processed within 5-7 business days