ICP Furnace Control Board Kit for RGS091LECB0AAA — OEM 1183618 | Ships Today
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Overview
This genuine OEM integrated furnace control board kit (part number 1183618) is the brain of the ICP / Tempstar / Heil RGS091LECB0AAA gas furnace. It sequences the entire heat cycle — energizing the inducer, proving the pressure switch, firing the hot surface igniter, opening the gas valve, monitoring flame, and timing the blower on and off delays. It also manages the cooling blower call and houses the diagnostic LED that flashes fault codes.
Control boards fail from power surges, lightning, cracked solder joints, blown onboard fuses, and burned relays. Symptoms range from a completely dead furnace to intermittent no-heat, short cycling, or a blower that runs continuously. Because this is the kit version, it includes the mounting hardware and connectors needed for a clean drop-in replacement.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1183618 |
| Type | Integrated Furnace Control (IFC) Board Kit |
| Brand | ICP / Tempstar / Heil |
| Function | Ignition, blower, and safety sequencing |
| Diagnostics | Onboard LED fault-code indicator |
| Fitment | OEM Replacement Kit |
Compatibility
Fits the ICP / Tempstar / Heil RGS091LECB0AAA furnace and other ICP-family furnaces specifying OEM control board 1183618. Confirm the board part number printed 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 furnace control/blower compartment panel.
- Document — Photograph every plug and wire on the old board; note the dip-switch / jumper settings.
- Remove — Unplug each connector, remove the mounting screws or standoffs, and lift out the old board.
- Install — Mount the new board, transfer any jumpers/dip settings, and reconnect every plug exactly as photographed.
- Test — Restore power, run a full heat and cool cycle, and confirm the diagnostic LED shows normal operation.
Signs You Need a Replacement
- Furnace is completely dead with no diagnostic LED
- Intermittent no-heat or random short cycling
- Blower runs constantly or never starts
- Visible burn marks, blown fuse, or cracked solder 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