ICP Furnace Control Board Kit for RGS300HFEA0AAAA — Integrated Ignition Control | Ships Today
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Overview
This genuine OEM control board kit (part 1183618) is the integrated furnace control (IFC) for the ICP RGS300HFEA0AAAA gas furnace. The board is the brain of the furnace: it manages the ignition sequence, sequences the inducer and gas valve, monitors safety limits and flame sense, controls blower timing for heating and cooling, and stores diagnostic fault codes shown on its onboard LED. When the board fails, the entire furnace can become unresponsive or stuck mid-sequence. Common failure symptoms include a furnace that is completely dead, no blower or inducer operation, an LED that flashes a hardware/internal fault code, or intermittent shutdowns and short-cycling traced to the control rather than a sensor.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1183618 |
| Type | Integrated furnace control board kit |
| Brand | ICP (Heil / Tempstar / Comfortmaker) |
| Control Voltage | 24V |
| Diagnostics | Onboard LED fault codes |
Compatibility
Direct-fit replacement kit for the ICP RGS300HFEA0AAAA furnace platform and shared ICP-family furnaces sold under the Heil, Tempstar, and Comfortmaker brands. Confirm the board part number and connector layout against your existing control before installing.
Installation Guide
- Safety First — Disconnect power at the breaker and verify zero voltage with a multimeter.
- Access — Remove the blower-compartment service panel to expose the control board.
- Document — Photograph every connector and the wire colors before unplugging.
- Remove — Disconnect all plug harnesses and ground leads, then unscrew the board from its standoffs.
- Install — Mount the new board and reconnect each harness to its matching plug per your photo.
- Test — Restore power, run a heat and a cool call, and confirm normal sequencing with no fault codes.
Signs You Need a Replacement
- Furnace is completely dead with no LED activity.
- Inducer or blower never starts despite a valid call.
- LED reports an internal/hardware control fault.
- Random shutdowns or short-cycling not explained by sensors or limits.
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