ICP Furnace Control Board Kit for RGS120LEBA0AAA – OEM Replacement | Ships Today
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Overview
This OEM control board kit (OEM 1183618) is the integrated furnace control (IFC) for the ICP/Tempstar/Heil RGS120LEBA0AAA gas furnace — the brain that sequences the entire heating cycle. It manages the inducer motor, hot surface igniter timing, gas valve energizing, flame sensing, and blower on/off delays, while continuously monitoring the safety circuit (pressure switches, limits, and rollout). When the board fails you may see no response at all, an inducer that runs but no ignition, a blower that won't shut off, or a flashing diagnostic LED fault code. Supplied as a complete kit with mounting hardware and instructions, this factory-spec replacement restores correct timing and full safety supervision.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1183618 |
| Type | Integrated Furnace Control Board Kit |
| Brand | ICP / Tempstar / Heil |
| Control Voltage | 24V |
| Functions | Ignition, Blower, Inducer, Flame Sense, Safety |
| Fit | OEM Replacement |
Compatibility
Built as the factory integrated control for the ICP RGS120LEBA0AAA 120,000 BTU gas furnace and equivalent Heil, Tempstar, and Comfortmaker platform models. Match the board part number and connector layout to your existing unit before ordering.
Installation Guide
- Safety First – Disconnect power at the furnace switch and breaker; verify zero voltage with a multimeter.
- Access – Remove the blower/control compartment service panel.
- Document – Photograph every wire harness and plug location on the old board before disconnecting.
- Remove – Unplug each connector, release the board mounting screws or standoffs, and lift out the failed board.
- Install – Mount the new board, transfer each connector to the identical terminal per your photo, and set any DIP switches/jumpers to match.
- Test – Restore power, run a full heat cycle, and verify proper ignition, blower timing, and a no-fault LED status.
Signs You Need a Replacement
- No furnace response on a call for heat
- Inducer runs but igniter or gas valve never energizes
- Blower runs constantly or fails to start
- Flashing diagnostic LED fault or scorched/corroded board traces
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