ICP Furnace Control Board Kit for RGS120SRAA0AAA — OEM Integrated Control | Ships Today
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Overview
This genuine OEM control board kit (part 1183618) is the integrated furnace control (IFC) that manages the operation of the ICP Tempstar Heil RGS120SRAA0AAA gas furnace. The board sequences the ignition cycle, monitors safety interlocks, controls the inducer and blower motors, manages igniter and gas valve timing, and runs onboard diagnostics with fault-code flash signals. As a complete kit it includes the board and necessary mounting hardware for a direct replacement. A failed control board can cause no-heat conditions, erratic blower or inducer behavior, ignition lockouts, or a furnace that won't respond to the thermostat at all. Power surges, moisture, and aged relays are common causes of board failure.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1183618 |
| Type | Integrated Furnace Control Board Kit |
| Brand | ICP / Tempstar / Heil |
| Fitment | OEM Replacement |
| Application | Gas Furnace Ignition & Blower Control |
Compatibility
Built for the ICP Tempstar Heil RGS120SRAA0AAA gas furnace and ICP-family models specifying control board kit 1183618. Always match the OEM part number, as control boards are model-specific.
Installation Guide
- Safety First — Disconnect power at the furnace switch and breaker; verify zero voltage with a multimeter.
- Access — Remove the furnace control/service panel.
- Document — Photograph every wire and connector on the board before disconnecting — this is critical for correct reassembly.
- Remove — Unplug each harness, transfer spade connectors, and unfasten the old board from its standoffs.
- Install — Mount the new board on the supplied hardware and reconnect every wire and connector exactly per your photos.
- Test — Restore power, run a full heat cycle, and verify ignition, blower operation, and a normal status LED.
Signs You Need a Replacement
- Furnace does not respond to a thermostat heat call
- Erratic or continuous blower/inducer operation
- Repeated ignition lockouts with no other fault found
- Burned spots, corrosion, or a dead/abnormal diagnostic LED 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