ICP Furnace Control Board for RGS240HFFA0AAAA — OEM Kit | Ships Today
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Overview
This OEM integrated control board kit (OEM 1183618) is the brains of your ICP / Tempstar / Heil RGS240HFFA0AAAA rooftop gas-electric unit. It manages the entire heating sequence — inducer startup, hot surface igniter timing, gas valve operation, flame sensing, and blower control — while monitoring the limit and pressure safety switches. Supplied as a complete kit with the correct connectors and instructions, it replaces a board that has failed due to surges, corrosion, or burned relays. A bad board often shows as a dead unit, an inducer or igniter that won't sequence, or repeated lockouts with no obvious component fault.
Specifications
| Spec | Value |
|---|---|
| OEM Part Number | 1183618 (Kit, Control Board) |
| Type | Integrated Furnace Control Board |
| Brand | ICP (Tempstar / Heil / Comfortmaker) |
| Line Voltage | 120V |
| Functions | Ignition, blower, gas valve, flame sense, safety sequencing |
Compatibility
Fits the ICP / Tempstar / Heil RGS240HFFA0AAAA rooftop gas-electric package unit and related RGS240-series cabinets that use this integrated control kit. Confirm your existing board part number and connector layout before ordering.
Installation Guide
- Safety First — Disconnect power and shut off the gas; verify zero voltage with a multimeter.
- Access — Remove the control-access panel.
- Document — Photograph every plug and wire on the old board before disconnecting.
- Remove — Unplug each harness, release the board standoffs, and lift out the failed board.
- Install — Mount the new board on the standoffs and reconnect every harness exactly per your photo.
- Test — Restore gas and power, then run a full heat and cool cycle to confirm proper sequencing.
Signs You Need a Replacement
- Unit completely dead with confirmed 24V and 120V supply
- Inducer, igniter, or blower will not sequence on a call
- Repeated lockouts with no faulty igniter, sensor, or switch
- Visible burn marks, corrosion, or scorched relays 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