ICP Control Board Kit for RGS303SSEA0AAAA — OEM 1183618 | Ships Today
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Overview
Genuine OEM furnace control board kit (part #1183618) for the ICP / Tempstar / Heil RGS303SSEA0AAAA gas furnace. The control board is the brain of the furnace — it sequences the inducer, igniter, gas valve, and blower, monitors safety limits and flame sense, and reads the thermostat call. When the board fails you may see no response to a heat call, blower or inducer that won't run, error codes flashing on the diagnostic LED, or intermittent no-heat lockouts. This complete kit restores full, reliable control of the ignition and blower sequence.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1183618 |
| Type | Furnace Control Board Kit |
| Brand | ICP / Tempstar / Heil |
| Application | Gas furnace ignition & blower control |
| Fitment | OEM |
Compatibility
Engineered for the ICP/Tempstar/Heil RGS303SSEA0AAAA gas furnace and related RGS-series ICP-family equipment. Confirm the board part number and connector layout against your existing board before ordering.
Installation Guide
- Safety First — Disconnect power at the switch and breaker; verify zero voltage with a multimeter.
- Access — Remove the furnace control compartment service panel.
- Document — Photograph every connector and wire location on the old board before disconnecting.
- Remove — Unplug each harness, release the board standoffs/screws, and lift out the old board.
- Install — Mount the new board and reconnect every harness exactly per your photo and the wiring diagram.
- Test — Restore power, run a heat cycle, and confirm proper inducer, ignition, and blower sequencing with no fault codes.
Signs You Need a Replacement
- No response to a thermostat heat call
- Inducer or blower fails to start in sequence
- Repeated ignition lockouts or fault-code flashes
- Burnt, corroded, or visibly damaged board traces/relays
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