ICP Furnace Control Board Kit for RGS120HDCB0AAA — OEM Ignition Control | Ships Today
OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
Overview
This OEM control board kit (part number 1183618) is the integrated furnace control for the ICP / Tempstar / Heil RGS120HDCB0AAA. The control board is the brain of the furnace — it manages the ignition sequence, sequences the inducer and blower, monitors safety devices like the limit and pressure switches, and reads flame signal to confirm a stable burn. When the board fails, the furnace may not respond to a heat call, lock out repeatedly, run the blower continuously, or flash diagnostic fault codes on the onboard LED. Common causes are power surges, moisture, failed relays, and burned traces. This kit is a direct factory replacement that restores reliable, code-compliant operation.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1183618 |
| Type | Integrated Furnace Control Board Kit |
| Brand | ICP / Tempstar / Heil |
| Function | Ignition, Blower & Safety Control |
| Diagnostics | Onboard LED Fault Codes |
| Fit | OEM Direct Replacement |
Compatibility
Built for the ICP Tempstar Heil RGS120HDCB0AAA gas furnace and related RGS-series units that use the same integrated control. Match the board part number and connector layout to your existing board before installing.
Installation Guide
- Safety First — Disconnect power at the breaker and verify zero voltage with a multimeter.
- Access — Remove the blower compartment service panel to reach the control board.
- Document — Photograph every connector and wire harness on the board before disconnecting anything.
- Remove — Unplug each harness, note any DIP switch or jumper settings, remove the mounting screws, and lift out the old board.
- Install — Mount the new board, match any DIP/jumper settings, and reconnect every harness exactly per your photo.
- Test — Restore power and run a full heat cycle, confirming proper ignition, blower operation, and no fault codes.
Signs You Need a Replacement
- Furnace does not respond to a heat call
- Repeated lockouts or flashing LED fault codes
- Blower or inducer runs continuously or erratically
- Visible burn marks, corrosion, or failed relays on the board
Shipping & Returns
Ships same day on orders placed 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