ICP Furnace Control Board Kit for RGS120HTCA0AAA – OEM | Ships Today
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Overview
This genuine OEM control board kit (PN 1183618) for the ICP (Tempstar/Heil) RGS120HTCA0AAA gas furnace is the integrated furnace control that runs the entire heating sequence. It manages the inducer, hot surface igniter timing, gas valve, blower on/off delays, and safety interlocks from the pressure switch and limit, while monitoring flame sense and flashing diagnostic fault codes through its onboard LED. When this board fails, symptoms range from a completely dead furnace to no ignition, blower that won't start or won't shut off, or repeated lockouts with error codes. Supplied as a kit for a complete, code-correct replacement of the original board.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1183618 |
| Type | Integrated furnace control board kit |
| Brand | ICP / Tempstar / Heil |
| Controls | Inducer, igniter, gas valve, blower timing, safeties |
| Diagnostics | Onboard LED fault codes |
| Fit | OEM, exact replacement |
Compatibility
Built for the ICP RGS120HTCA0AAA and used across ICP-family gas furnaces from ICP, Tempstar, Heil, and Comfortmaker that specify this integrated control. Match the board part number and connector layout to your existing board before installing.
Installation Guide
- Safety First – Disconnect power at the furnace switch and breaker; verify zero voltage with a multimeter before touching the board.
- Access – Remove the blower/control compartment service panel.
- Document – Photograph every connector and wire position on the old board before unplugging anything.
- Remove – Unplug all harnesses, release the mounting standoffs, and lift out the failed board.
- Install – Mount the new board, transfer each connector to the matching terminal per your photo, and set any DIP/jumper options to match the original.
- Test – Restore power, run a full heat call, and verify correct ignition, blower timing, and no fault codes on the LED.
Signs You Need a Replacement
- Furnace completely unresponsive to thermostat calls
- No ignition sequence or no inducer start
- Blower won't start or runs continuously
- Repeated lockouts or error-code flashes from the board LED
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