ICP Furnace Control Board Kit for RGS303STEA0AAAA | Ships Today
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Overview
This is a genuine OEM control board kit (part number 1183618) for the ICP / Heil / Tempstar RGS303STEA0AAAA gas furnace. The integrated furnace control board is the brain of the system: it manages the ignition sequence, sequences the inducer and blower, monitors safety limits and flame, and runs the diagnostic LED fault codes. Because it ties every major component together, a failed board can present as almost any symptom — no ignition, no blower, short cycling, or random lockouts. The kit ships with the required mounting hardware and instructions so you can drop it in as a complete assembly. Always read the stored fault code and confirm the board is the failure before replacing it.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1183618 |
| Type | Integrated Furnace Control Board Kit |
| Brand | ICP / Heil / Tempstar |
| Function | Ignition, blower/inducer sequencing, safety & diagnostics |
| Fit | OEM |
Compatibility
Direct OEM replacement kit for the ICP / Heil / Tempstar RGS303STEA0AAAA furnace. ICP-family boards are model-specific — verify the kit part number against your existing board and the unit rating plate before installing.
Installation Guide
- Safety First — Disconnect power at the furnace switch and breaker, then verify zero voltage with a multimeter.
- Access — Remove the furnace control-compartment service panel.
- Document — Photograph every connector and wire harness on the old board before unplugging anything.
- Remove — Unplug the harnesses, release the standoffs/screws, and lift out the failed board.
- Install — Mount the new board on its standoffs and reconnect each harness to the matching terminal per your photos and the included diagram.
- Test — Restore power, run a full heat cycle, and confirm correct ignition, blower operation, and a normal diagnostic LED.
Signs You Need a Replacement
- No response on a call for heat with no LED activity or a hard fault code pointing to the board
- Inducer or blower fails to sequence correctly
- Random short cycling or lockouts not traced to a sensor or igniter
- Visible scorching, burnt relays, or corrosion 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