ICP Furnace Control Board for RGS091HSCB0AAA — OEM Kit 1183618 | Ships Today
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Overview
The integrated furnace control board is the electronic brain of your ICP / Heil / Tempstar RGS091HSCB0AAA gas furnace. This OEM kit (part number 1183618) manages the complete ignition and safety sequence — it powers the inducer motor, energizes the hot surface igniter, opens the gas valve, monitors flame via the sensor, and controls blower timing for both heating and cooling calls. When this board fails, the furnace simply will not respond correctly to the thermostat. Common failure symptoms include no ignition at all, a furnace that short-cycles, blower motor that runs constantly or never starts, a flashing diagnostic LED error code, or burnt/cracked relays visible on the board itself. Power surges, moisture, and overheated relays are the usual culprits.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1183618 |
| Type | Integrated Furnace Control Board Kit |
| Brand | ICP (Heil / Tempstar / Comfortmaker) |
| Line Voltage | 115 VAC |
| Control Voltage | 24 VAC |
| Ignition Type | Hot Surface Ignition |
| Fit | OEM Direct Replacement |
Compatibility
This control board kit is the factory-specified replacement for the ICP / Heil / Tempstar RGS091HSCB0AAA gas furnace. It is also used across many related RGS091 and RGS-series single-stage furnace platforms. Always confirm the printed part number on your existing board matches 1183618 before installing.
Installation Guide
- Safety First — Disconnect power at the furnace switch and breaker. Verify zero voltage with a multimeter before touching any wiring.
- Access — Remove the furnace front service panel and locate the control board in the blower compartment.
- Document — Photograph every wire and connector position before disconnecting anything.
- Remove — Unplug all low- and line-voltage harnesses, release the mounting standoffs or screws, and lift out the old board.
- Install — Mount the new board on the standoffs and reconnect every harness exactly per your photos.
- Test — Restore power, run a heat call, and confirm the full ignition sequence and blower operation. Check the diagnostic LED for normal status.
Signs You Need a Replacement
- Furnace does not ignite or respond to the thermostat
- Blower runs continuously or fails to start
- Diagnostic LED flashing a hard fault or staying off
- Visible burn marks, melted relays, or scorching 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