ICP Furnace Control Board Kit for RGS120SFBB0AAA — OEM Ignition Control | Ships Today
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Overview
This genuine OEM control board kit (part #1183618) is the integrated furnace control (IFC) brain of the ICP/Tempstar/Heil RGS120SFBB0AAA. It manages the entire heat sequence: it reads the thermostat call, runs the inducer and pressure switch proving, energizes the hot surface igniter, opens the gas valve, monitors flame via the sensor, and times the blower on and off delays. It also stores fault history and flashes diagnostic codes through the onboard LED. When the board fails, the furnace may be completely dead, stuck in lockout, blowing cold air, or short cycling with erratic flash codes. This kit ships with the mounting hardware and instructions needed for a complete swap.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1183618 |
| Type | Integrated Furnace Control Board Kit |
| Brand | ICP |
| Function | Ignition, Blower & Diagnostics |
| Diagnostics | Onboard LED Fault Codes |
| Fitment | OEM Replacement |
Compatibility
Direct OEM replacement for the ICP/Tempstar/Heil RGS120SFBB0AAA gas furnace and related models that use the 1183618 control board kit. Match the board layout and connector positions to your existing control before wiring.
Installation Guide
- Safety First — Disconnect power and shut off gas, then verify zero voltage with a multimeter.
- Access — Remove the furnace control panel to expose the board.
- Document — Photograph every plug and wire location before disconnecting — connector positions are critical.
- Remove — Unplug the harnesses one at a time and remove the mounting screws or standoffs.
- Install — Mount the new board, transfer each connector to the identical position per your photos, and set any DIP switches to match the original.
- Test — Restore power and gas, run a full heat cycle, and confirm a steady status LED with no fault codes.
Signs You Need a Replacement
- Furnace completely unresponsive to thermostat calls
- Continuous lockout or hard fault flash codes
- Blower or inducer running erratically
- Burned, scorched, or corroded traces on the board
Shipping & Returns
Ships same day on orders placed before 3 PM CST. 30-day hassle-free 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