ICP Furnace Control Board Kit for RGS120HTBA0AAA — Integrated Ignition Control | Ships Today
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Overview
This OEM control board kit (part #1183618) is the integrated furnace control (IFC) for the ICP/Heil/Tempstar RGS120HTBA0AAA gas furnace. It is the brain of the furnace — managing the ignition sequence, inducer and blower timing, safety lockouts, and flame sensing. The kit ships with the board and mounting hardware for a complete replacement. A failed board produces erratic behavior: intermittent no-heat, short cycling, or a furnace that won't respond to the thermostat at all.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1183618 (Kit) |
| Type | Integrated Furnace Control Board |
| Brand | ICP / Heil / Tempstar |
| Voltage | 120V / 24V control |
| Application | Gas Furnace |
Compatibility
Direct fit for the ICP RGS120HTBA0AAA furnace and shared-platform Heil, Tempstar, Comfortmaker, and Arcoaire models. Confirm your existing board's part number and connector layout before installing.
Installation Guide
- Safety First — Disconnect power at the breaker/service switch and verify zero voltage with a multimeter.
- Access — Remove the furnace control panel cover.
- Document — Photograph every wire and connector position on the old board before disconnecting anything.
- Remove — Label and unplug the harnesses, remove the mounting screws, and take out the failed board.
- Install — Mount the new board, transfer connectors exactly per your photo, and set any DIP switches/jumpers to match the original.
- Test — Restore power and run a full heat cycle; verify ignition, blower, and limit operation, and check diagnostic LED codes.
Signs You Need a Replacement
- Furnace unresponsive to thermostat calls
- Intermittent no-heat or random short cycling
- Diagnostic LED flashing a hard-lockout or control fault code
- Visible burnt traces, scorching, or corrosion on the 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