ICP Furnace Control Board Kit for RGS120HSBB0AAA — OEM 1183618 | Ships Today
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Overview
This OEM control board kit, factory part number 1183618 (KIT CONTROL BOARD), is the electronic brain of the ICP / Tempstar / Heil RGS120HSBB0AAA gas furnace. It manages the entire heat cycle: it powers the draft inducer, monitors the pressure switch and limit safeties, energizes the hot surface igniter, opens the gas valve, proves flame, and controls blower timing. A failed board can cause a no-heat condition, erratic blower operation, blown low-voltage fuses, or a furnace that ignites then short-cycles. Supplied as a complete kit with the hardware needed for a clean swap, this board restores reliable, code-compliant operation and the built-in flash-code diagnostics that make future troubleshooting straightforward.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1183618 |
| Type | Integrated Furnace Control Board Kit |
| Brand | ICP / Tempstar / Heil |
| Fits Model | RGS120HSBB0AAA |
| Control Voltage | 24V low voltage |
| Fitment | OEM direct replacement kit |
Compatibility
A direct OEM replacement for the ICP / Tempstar / Heil RGS120HSBB0AAA furnace. Because control board revisions vary across production runs, match the existing board's part number or your furnace model and serial before installing.
Installation Guide
- Safety First — Disconnect power at the switch and breaker; verify zero voltage with a multimeter.
- Access — Remove the blower-compartment service panel to expose the control board.
- Document — Photograph every wire and connector on the board before disconnecting anything.
- Remove — Label and unplug each harness, remove the mounting screws, and lift out the old board.
- Install — Mount the new board, transfer connections exactly per your photo, and set any required jumpers or DIP switches to match.
- Test — Restore power, run a full heat cycle, and confirm correct ignition, flame proving, and blower timing.
Signs You Need a Replacement
- No response from the furnace on a heat call
- Repeated blown low-voltage fuses or burnt traces on the old board
- Erratic blower or inducer operation and random lockouts
- Diagnostic LED dark or flashing a hard-fault code
Shipping & Returns
Ships same day before 3 PM CST. 30-day returns. 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