ICP Furnace Control Board Kit for RGS243LFFA0AAAA — OEM Ignition Control | Ships Today
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Overview
This genuine OEM control board kit (part number 1183618) is the brains of the ICP / Tempstar / Heil RGS243LFFA0AAAA gas furnace. The integrated furnace control manages the entire heating sequence — inducer startup, pressure switch proving, igniter warm-up, gas valve timing, flame sensing, and blower on/off delays — and reports fault codes through its diagnostic LED. When the board fails, the furnace may not respond to the thermostat, may skip steps in the ignition sequence, or may run the blower continuously. The kit includes the board and the hardware needed for a clean replacement.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1183618 |
| Type | Integrated Furnace Control Board Kit |
| Brand | ICP / Tempstar / Heil |
| Function | Ignition & Blower Sequencing, Diagnostics |
| Application | Gas Furnace |
| Fitment | OEM Replacement Kit |
Compatibility
A direct OEM fit for the ICP RGS243LFFA0AAAA and equivalent Tempstar, Heil, Comfortmaker, and Carrier-family furnaces using this control. Match the board part number and connector layout to your existing board before installing.
Installation Guide
- Safety First — Disconnect power at the furnace switch and breaker, then verify zero voltage with a multimeter. Shut off the gas supply.
- Access — Remove the furnace control compartment service panel.
- Document — Photograph every connector and wire harness on the old board before unplugging anything.
- Remove — Unplug each harness, release the standoffs or screws, and lift out the old board.
- Install — Mount the new board, transfer any jumpers or settings, and reconnect each harness exactly per your photo.
- Test — Restore gas and power, run a full heat cycle, and confirm the diagnostic LED shows normal operation with no fault codes.
Signs You Need a Replacement
- Furnace does not respond to the thermostat at all.
- Diagnostic LED is dark or flashing a hard-fault code.
- Ignition sequence stalls, repeats, or skips steps.
- Blower runs constantly or fails to start after ignition.
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