ICP Furnace Control Board Kit for RGS240LTFA0AAAA — OEM 1183618 | Ships Today
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Overview
The ICP control board kit (OEM part 1183618) is the integrated furnace control that manages your RGS240LTFA0AAAA gas furnace's entire heating sequence. It governs the inducer motor, igniter, gas valve timing, blower operation, and safety interlocks, while monitoring flame sense, limit switches, and pressure switches. A failed control board is one of the most common causes of a no-heat or short-cycling furnace. Symptoms include a furnace that won't start, blower that won't shut off, repeated lockouts, or diagnostic LED fault codes. This OEM kit includes the board and the hardware needed for a clean, direct replacement that restores correct sequencing and safety operation.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1183618 |
| Description | Kit, Control Board |
| Type | Integrated Furnace Control (IFC) |
| Brand | ICP (Tempstar / Heil / Comfortmaker) |
| Fits Model | RGS240LTFA0AAAA |
| Fitment | OEM Direct Replacement Kit |
| Application | Gas Furnace Control |
Compatibility
This control board kit is the OEM-specified replacement for the ICP RGS240LTFA0AAAA gas furnace and the equivalent Tempstar, Heil, and Comfortmaker models that call out ICP part 1183618. Confirm your furnace model number and the existing board part number before ordering, as control boards are model-series specific.
Installation Guide
- Safety First — Disconnect electrical power at the furnace switch or breaker and shut off the gas. Verify zero voltage with a multimeter before working in the control compartment.
- Access — Remove the furnace control-compartment service panel.
- Document — Photograph every wire and connector on the existing board and note any factory jumper or dip-switch settings before disconnecting.
- Remove — Unplug all connectors, remove the board mounting screws, and lift out the old board.
- Install — Mount the new board, transfer any jumpers/dip-switch settings to match the original, and reconnect every harness exactly per your photos.
- Test — Restore gas and power, run a full heat cycle, and confirm correct ignition, blower, and shutdown sequencing with no fault codes.
Signs You Need a Replacement
- Furnace won't power up or won't respond to a call for heat
- Blower runs constantly or won't start
- Repeated ignition lockouts with no other failed component
- Diagnostic LED shows a control-fault code or no light at all
Shipping & Returns
Ships same day on orders placed before 3 PM CST. 30-day returns on unused parts. 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