ICP Furnace Control Board Kit for RGS120LDBB0AAA — OEM Integrated Control | Ships Today
OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
Overview
This OEM control board kit (part 1183618) is the integrated furnace control (IFC) brain of the ICP Tempstar Heil RGS120LDBB0AAA gas furnace. It sequences the entire heating cycle — verifying the pressure switch, energizing the hot surface igniter, opening the gas valve, monitoring flame via the flame sensor, and timing the inducer and blower on/off delays. It also enforces the safety lockouts that shut the furnace down on a failed ignition or open limit. The kit ships with the mounting hardware and instructions needed for a direct replacement. Control boards fail from power surges, heat stress, corroded relays, and cracked solder joints, producing symptoms that range from no ignition to a blower that never starts or never stops.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1183618 |
| Type | Integrated Furnace Control Board Kit |
| Brand | ICP (Tempstar / Heil / Comfortmaker) |
| Function | Ignition, blower, inducer & safety sequencing |
| Includes | Control board + mounting kit / instructions |
| Fit | OEM Replacement |
Compatibility
Designed for the ICP / Tempstar / Heil / Comfortmaker RGS120LDBB0AAA furnace and related models using this integrated control. Match the board part number and connector layout to your original 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/control compartment panel.
- Document — Photograph every harness connector and wire location before unplugging.
- Remove — Unplug all connectors, remove the mounting screws/standoffs, and lift out the old board.
- Install — Mount the new board with the included hardware and reconnect each harness exactly per your photos.
- Test — Restore power, run a full heat call, and confirm proper ignition, flame sense, and blower timing; check the diagnostic LED for fault codes.
Signs You Need a Replacement
- No ignition sequence despite a valid heat call.
- Blower runs constantly or never starts.
- Diagnostic LED dark or flashing a hard-fault/lockout code.
- Visible burnt relays, scorched traces, or corrosion on the board.
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