ICP Furnace Control Board Kit for RGS120HSCB0AAA — OEM Ignition Control | Ships Today
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Overview
This OEM control board kit (PN 1183618) is the integrated furnace control (IFC) brain of the ICP Tempstar Heil RGS120HSCB0AAA. It manages the entire heating sequence — energizing the inducer, igniter, and gas valve, monitoring flame and pressure safeties, and timing the blower on and off. It also provides the 24V to the thermostat and self-diagnostic fault codes. When the board fails, you may see a furnace that's completely dead, won't ignite, runs the blower continuously, or flashes error codes despite good sensors and igniter.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1183618 |
| Type | Integrated Furnace Control Board Kit |
| Brand | ICP / Tempstar / Heil |
| Function | Ignition, blower & safety sequencing |
| Control Voltage | 24V |
| Fit | OEM Replacement |
Compatibility
Engineered for the ICP / Tempstar / Heil RGS120HSCB0AAA gas furnace. Match the board part number and connector layout to your existing control before installing.
Installation Guide
- Safety First — Disconnect electrical power and verify zero voltage with a multimeter.
- Access — Remove the blower compartment service panel.
- Document — Photograph every connector and wire position before disconnecting; note any dip-switch settings.
- Remove — Unplug all harnesses and unscrew the old board from its standoffs.
- Install — Mount the new board, transfer dip-switch settings, and reconnect each harness per your photo.
- Test — Restore power, call for heat, and verify a full ignition cycle with correct blower timing and no fault codes.
Signs You Need a Replacement
- Furnace completely unresponsive with no diagnostic LED
- No ignition despite good igniter, sensor, and gas supply
- Blower runs constantly or won't start
- Erratic operation or persistent fault codes
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