ICP Furnace Control Board Kit for RGS300HTEA0AAAA — OEM 1183618 | Ships Today
OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
Overview
This OEM control board kit (part #1183618) is the integrated furnace control (IFC) that runs the entire heating and cooling sequence on your ICP Tempstar/Heil RGS300HTEA0AAAA furnace. The board manages the ignition sequence, sequences the inducer and blower motors, monitors safety limits and flame, and routes the 24V thermostat signals. When it fails, the furnace can stop responding entirely, run blower-only, fail to ignite, or short-cycle. Because the board interprets every safety input, a failed IFC often presents as flashing diagnostic LED codes. The kit ships with the mounting hardware needed for a clean swap.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1183618 |
| Type | Integrated Furnace Control Board Kit |
| Brand | ICP / Tempstar / Heil |
| Control Voltage | 24V |
| Function | Ignition, Blower & Safety Sequencing |
Compatibility
Direct-fit replacement for the ICP Tempstar Heil RGS300HTEA0AAAA gas furnace and related RGS300 series equipment. Confirm the board's connector layout and harness plugs match your original before wiring.
Installation Guide
- Safety First — Disconnect power at the breaker; verify zero voltage with a multimeter.
- Access — Remove the furnace control-compartment panel.
- Document — Photograph every harness connector and wire color before unplugging.
- Remove — Unplug all connectors, remove the mounting screws, and lift out the old board.
- Install — Mount the new board and transfer each connector to the matching plug per your photo.
- Test — Restore power and verify a full heat cycle: inducer, ignition, flame, and blower, with no fault codes.
Signs You Need a Replacement
- Furnace completely unresponsive to the thermostat
- Flashing diagnostic LED fault codes on the board
- No ignition or blower despite a valid call
- Intermittent short-cycling or random lockouts
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