ICP Furnace Control Board for RGS091LFCA0AAA — OEM Ignition Control | Ships Today
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Overview
This OEM control board kit (part #1183618) is the integrated furnace control (IFC) — the brain of the ICP/Heil/Tempstar RGS091LFCA0AAA gas furnace. It sequences the entire heat cycle: powering the inducer, proving pressure, energizing the hot surface igniter, opening the gas valve, monitoring flame, and timing the blower on/off delays. It also enforces safety lockouts from the limit and rollout switches. A failed board causes intermittent no-heat, the furnace ignoring the thermostat, blower running constantly, or rapid LED fault codes. Because it controls every safety interlock, a marginal board should always be replaced with the correct OEM part.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1183618 (Kit, Control Board) |
| Type | Integrated Furnace Control (IFC) |
| Brand | ICP / Heil / Tempstar |
| Function | Ignition, blower, and safety sequencing |
| Fits Model | RGS091LFCA0AAA |
Compatibility
Designed for the ICP/Heil/Tempstar/Comfortmaker RGS091LFCA0AAA furnace and related RGS-series 90%+ AFUE units. Confirm the board part number printed on your existing control before ordering.
Installation Guide
- Safety First — Disconnect power at the switch and breaker; verify zero voltage with a multimeter.
- Access — Remove the blower compartment service panel.
- Document — Photograph every harness connection and note wire colors/terminal positions.
- Remove — Unplug all connectors, remove the mounting screws, and lift out the old board.
- Install — Mount the new board and reconnect every harness exactly per your photos.
- Test — Restore power, run a full heat cycle, and confirm no fault codes on the diagnostic LED.
Signs You Need a Replacement
- Furnace does not respond to the thermostat call for heat
- Blower runs continuously or never starts
- Erratic short cycling or random no-heat events
- Diagnostic LED flashing a hard-lockout or board fault code
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