ICP Furnace Control Board Kit for RGS240LSAA0AAAA — OEM 1183618 | Ships Today
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Overview
The ICP control board kit (OEM part 1183618) is the integrated furnace control (IFC) that manages the entire heating sequence of your RGS240LSAA0AAAA gas furnace. It sequences the inducer, igniter, gas valve, and blower, monitors safety circuits, and provides diagnostic fault codes via its onboard LED. A failed control board can cause a no-heat condition, erratic blower operation, or a furnace that fails to respond to the thermostat. This complete kit is an OEM-spec replacement supplied with the hardware needed for a clean swap.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1183618 |
| Description | Kit Control Board |
| Type | Integrated Furnace Control Board |
| Brand | ICP (Tempstar / Heil) |
| Application | Gas Furnace Ignition & Blower Control |
| Fitment | OEM Direct Replacement Kit |
Compatibility
Built for the ICP / Tempstar / Heil RGS240LSAA0AAAA gas furnace and RGS240-series equipment specifying OEM part 1183618. Confirm the part number on your existing board before ordering.
Installation Guide
- Safety First — Disconnect power at the furnace switch and breaker, then verify zero voltage with a multimeter.
- Access — Remove the blower compartment service panel.
- Document — Photograph every wire and connector position on the existing board before disconnecting.
- Remove — Label and unplug all connectors, remove the mounting screws, and lift out the old board.
- Install — Mount the new board, transfer any jumpers/links, and reconnect each harness exactly per your photos.
- Test — Restore power and run a full heat cycle; confirm the diagnostic LED shows normal operation.
Signs You Need a Replacement
- Furnace completely unresponsive to the thermostat (no sequence start).
- Blower runs constantly or fails to start on a heat call.
- Diagnostic LED shows a hard fault, is dark, or flashes erratically.
- Visible burnt traces, scorched relays, or corrosion 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