ICP Furnace Control Board Kit for RGS120STAA0AAA | OEM 1183618 | Ships Today
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Overview
This OEM control board kit (part 1183618) is the integrated furnace control (IFC) brain of the ICP/Tempstar/Heil RGS120STAA0AAA gas furnace. It manages the entire heating sequence — inducer startup, igniter warm-up, gas valve timing, blower delays, and built-in safety logic that monitors the pressure switch, limit, and flame signal. A failed board produces a wide range of symptoms: no response to the thermostat, no igniter or inducer activation, short cycling, or a blower that runs continuously. The kit ships with the necessary mounting hardware and connectors for a complete replacement.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1183618 |
| Type | Integrated Furnace Control Board Kit |
| Brand | ICP / Tempstar / Heil |
| Function | Ignition, Blower & Safety Sequencing |
| Fitment | OEM Direct-Fit |
| Application | Gas Furnace |
Compatibility
Direct replacement control board kit for the ICP Tempstar Heil RGS120STAA0AAA. Match part number 1183618 to your existing board and verify connector layout before installing.
Installation Guide
- Safety First — Disconnect power at the furnace switch and breaker; verify zero voltage with a multimeter.
- Access — Remove the control-compartment service panel.
- Document — Photograph every harness and terminal connection before unplugging anything.
- Remove — Unplug all connectors, note any dip-switch/jumper settings, and unscrew the old board from its standoffs.
- Install — Mount the new board, replicate any jumper/dip settings, and reconnect each harness per your photos.
- Test — Restore power, call for heat, and verify the full ignition and blower sequence completes without fault codes.
Signs You Need a Replacement
- No response from the furnace on a call for heat
- Inducer or igniter fails to energize
- Short cycling or erratic blower operation
- Visible burn marks, corrosion, or a blown onboard fuse
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