ICP Furnace Control Board Kit for RGS091LDCA0AAA — OEM Ignition Control | Ships Today
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Overview
The ICP 1183618 is an OEM control board kit for the RGS091LDCA0AAA gas furnace — the integrated furnace control (IFC) that orchestrates the entire heating and blower sequence. It manages the call for heat, energizes the inducer, monitors the pressure switch, fires the hot surface igniter, opens the gas valve, reads the flame sensor for flame proving, and times the blower on/off delays. It also runs the safety logic that locks the furnace out on failed ignition, flame loss, or a stuck pressure switch, and flashes diagnostic fault codes via its onboard LED. A failed board produces erratic, intermittent, or dead-furnace symptoms that mimic many other parts. Supplied as a kit with the required mounting hardware and harness adapters for a clean OEM replacement.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1183618 |
| Type | Integrated Furnace Control Board Kit |
| Brand | ICP (Tempstar / Heil) |
| Function | Ignition, Blower & Safety Control |
| Diagnostics | Onboard LED Fault Codes |
| Fits Model | RGS091LDCA0AAA |
| Fitment | OEM Direct Replacement |
Compatibility
Direct OEM replacement for ICP, Tempstar, Heil, and Comfortmaker RGS091LDCA0AAA series gas furnaces using this integrated furnace control. Match the board's part number and connector layout to your existing unit before installing.
Installation Guide
- Safety First — Disconnect power at the furnace switch and verify zero voltage with a multimeter; shut off the gas supply.
- Access — Remove the blower or control compartment service panel.
- Document — Photograph every connector and the board's orientation before unplugging anything — labeled plugs make reassembly foolproof.
- Remove — Unplug each harness connector, remove the board mounting screws, and lift out the old board.
- Install — Mount the new board with the supplied hardware and reseat every connector fully per your photo, confirming each plug clicks home.
- Test — Restore gas and power, then run a full heat cycle and confirm correct ignition, flame proving, and blower timing with no fault codes.
Signs You Need a Replacement
- Furnace is completely dead with no LED activity on the board
- Intermittent no-heat calls that don't trace to igniter, valve, or sensor
- Blower runs constantly or fails to start after ignition
- Visible scorching, burnt traces, or a tripped onboard fuse on the board
Shipping & Returns
Ships same day on orders placed 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