ICP Furnace Control Board Kit for RGS300SDEA0AAAA - OEM 1183618 | Ships Today
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Overview
This OEM control board kit (ICP part #1183618) is the integrated furnace control (IFC) that manages the entire heating sequence in your ICP / Tempstar / Heil RGS300SDEA0AAAA gas furnace. It sequences the inducer, igniter, gas valve, and blower; monitors pressure and limit safeties; and provides diagnostic fault codes via an onboard LED. When the board fails you may see no ignition, a furnace that won't respond to the thermostat, blower running continuously, or flashing error codes. The kit includes the replacement board and required hardware for a complete factory-spec installation.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1183618 |
| Type | Integrated Furnace Control Board Kit |
| Brand | ICP / Tempstar / Heil |
| Functions | Ignition, blower, inducer, safety monitoring, diagnostics |
| Fit | OEM Direct Replacement |
Compatibility
Engineered for the ICP / Tempstar / Heil RGS300SDEA0AAAA furnace and related models that originally used the 1183618 control board kit. Verify your existing board part number before ordering.
Installation Guide
- Safety First - Disconnect power at the furnace switch and breaker, then verify zero voltage with a multimeter.
- Access - Remove the furnace control/service panel.
- Document - Photograph every wire and connector on the existing board before disconnecting.
- Remove - Unplug all harnesses, then unscrew the old board from its standoffs.
- Install - Mount the new board and reconnect each harness exactly as photographed.
- Test - Restore power, call for heat, and verify the full ignition-to-blower sequence with no fault codes.
Signs You Need a Replacement
- Furnace fails to ignite or ignores the thermostat
- Flashing diagnostic LED fault codes
- Blower runs continuously or not at all
- Burnt spots, corrosion, or failed relays on the board
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