ICP Furnace Control Board for RGS090SRCB0AAA — OEM Kit | Ships Today
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Overview
This OEM integrated furnace control board kit (part 1183618) is the brain of your ICP RGS090SRCB0AAA gas furnace. It sequences the entire heating cycle — energizing the inducer, proving pressure switches, firing the hot surface igniter, opening the gas valve, and timing the blower on and off delays — while continuously monitoring safety limits and flame. When a control board fails, the furnace may not respond to the thermostat, lock out on diagnostic fault codes, or run the blower without producing heat. The kit ships with the components needed for a clean OEM-level replacement and restores proper, code-compliant sequencing.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1183618 |
| Type | Integrated Furnace Control Board Kit |
| Brand | ICP |
| Function | Ignition, Blower & Safety Sequencing |
| Diagnostics | LED Fault Code Indication |
| Fitment | OEM Replacement |
Compatibility
Direct OEM replacement kit for the ICP / Tempstar / Heil RGS090SRCB0AAA furnace and related platforms using this control board. Match the board's connector layout and part number to your failed unit before installing.
Installation Guide
- Safety First — Disconnect power at the breaker and verify zero voltage with a multimeter.
- Access — Remove the control compartment service panel.
- Document — Photograph every harness connection on the existing board before disconnecting.
- Remove — Unplug each connector, remove the mounting screws, and lift out the old board.
- Install — Mount the new board, transfer any jumper/DIP settings, and reconnect each harness per your photo.
- Test — Restore power, call for heat, and confirm a full ignition and blower cycle with no fault codes.
Signs You Need a Replacement
- Furnace completely unresponsive to the thermostat
- Persistent or flashing diagnostic fault codes on the board LED
- Blower runs constantly or fails to start after ignition
- Intermittent operation, random lockouts, or scorched spots 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