ICP Furnace Control Board for RGS240STFA0AAAA — OEM Kit 1183618 | Ships Today
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Overview
The 1183618 control board kit is the OEM integrated furnace control (IFC) for the ICP Tempstar / Heil RGS240STFA0AAAA gas furnace. This board is the brain of the furnace — it sequences the ignition cycle, monitors the flame sensor and pressure switches, controls the inducer and blower motors, and manages safety lockouts. When the board fails, the furnace may fail to ignite, short-cycle, lock out, or stop responding to the thermostat entirely. Common failure signs include a furnace that runs the inducer but never lights, blinking diagnostic LED fault codes, or no response on a call for heat. This kit ships as a complete OEM replacement assembly to restore reliable, code-compliant operation.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1183618 |
| Type | Integrated Furnace Control Board Kit |
| Brand | ICP (Tempstar / Heil) |
| Description | Kit, Control Board |
| Control Voltage | 24V |
| Application | Gas Furnace |
| Fitment | OEM Direct Replacement |
Compatibility
This control board kit is the OEM replacement for the ICP Tempstar Heil RGS240STFA0AAAA gas furnace. It also fits closely related RGS240-series furnaces built under the ICP family of brands (Heil, Tempstar, Comfortmaker, Arcoaire). Always confirm your existing board's part number before ordering.
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 blower-compartment service panel.
- Document — Photograph every wire and connector position on the old board before disconnecting anything.
- Remove — Unplug all low-voltage and line-voltage harnesses, remove the mounting screws, and lift out the failed board.
- Install — Mount the new 1183618 board, transfer the jumper/DIP settings, and reconnect every harness per your photos.
- Test — Restore gas and power, run a heat cycle, and confirm proper ignition sequence and diagnostic LED status.
Signs You Need a Replacement
- Furnace inducer runs but the igniter never energizes
- Repeated lockouts or blinking fault-code LEDs on the board
- No response from the furnace on a thermostat call for heat
- Visible scorching, burnt 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