ICP Furnace Control Board Kit for RGS300HEEA0AAAA — Integrated Ignition Control | Ships Today
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Overview
This is a genuine OEM control board kit (part 1183618) for the ICP / Heil / Tempstar RGS300HEEA0AAAA gas furnace. The integrated furnace control board is the brain of the appliance: it manages the ignition sequence, monitors the flame-sense signal, sequences the inducer and blower motors, reads the 24V thermostat call, and runs the safety interlocks for the limit and pressure switches. Because every heating cycle routes through this board, a failure can show up as no heat, intermittent operation, blower or inducer that won't run, or repeated lockouts even when the igniter, gas valve, and switches all test good. This kit ships with the mounting hardware and instructions needed for a direct replacement.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1183618 |
| Type | Integrated Furnace Control Board Kit |
| Brand | ICP (Heil / Tempstar / Comfortmaker) |
| Control Voltage | 24V thermostat circuit |
| Function | Ignition, flame sense, blower and inducer sequencing, safety interlocks |
Compatibility
Direct OEM replacement kit for the ICP/Heil/Tempstar RGS300HEEA0AAAA and related ICP-family furnaces that use this integrated control. Verify the board part number and connector layout against your existing board before installing.
Installation Guide
- Safety First — Disconnect power at the furnace switch and breaker, then verify zero voltage with a multimeter.
- Access — Remove the blower-compartment service panel to expose the control board.
- Document — Photograph every connector and wire harness position before unplugging.
- Remove — Unplug each harness, release the board standoffs or screws, and lift out the old board.
- Install — Mount the new board from the kit, transfer each connector to match your photos, and seat all harnesses fully.
- Test — Restore power, call for heat, and verify a complete ignition, flame-proof, and blower cycle.
Signs You Need a Replacement
- No heat with no fault despite good igniter, valve, and switches
- Blower or inducer motor won't start or runs continuously
- Random lockouts or error codes that clear on a power reset
- Burnt traces, scorched relays, or a cracked 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