ICP Furnace Control Board Kit for RGS101LFCA0AAA — OEM 1183618 | Ships Today
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Overview
This OEM furnace control board kit (part 1183618) is the integrated ignition control / circuit board for the ICP / Heil / Tempstar RGS101LFCA0AAA gas furnace. The board is the brain of the heating system: it manages the ignition sequence, sequences the inducer and blower motors, monitors flame via the sensor and limit switches, and runs diagnostic LED fault codes. When this board fails the furnace may be completely dead, fail to begin the ignition sequence, short-cycle, or flash an error code. Because it is the central control, a faulty board can mimic many other failures — replacing it restores reliable, code-compliant operation. This is a complete kit, so it includes the components needed to swap the board cleanly.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1183618 |
| Type | Integrated Furnace Control Board Kit |
| Brand | ICP / Heil / Tempstar / Comfortmaker |
| Application | Gas Furnace Ignition & Blower Control |
| Fit | OEM Replacement |
| Model | RGS101LFCA0AAA |
Compatibility
Direct-fit replacement for the ICP/Heil/Tempstar/Comfortmaker RGS101LFCA0AAA furnace and RGS-series units that specify OEM control board kit 1183618. Verify the part number printed on your existing board before ordering, as ICP used several board revisions across model years.
Installation Guide
- Safety First — Disconnect power at the furnace switch/breaker and verify zero voltage with a multimeter before touching the board.
- Access — Remove the furnace blower/control compartment service panel.
- Document — Photograph every wire and connector position on the old board before disconnecting; label harnesses if needed.
- Remove — Unplug all connectors, remove the board mounting screws/standoffs, and lift the old board out.
- Install — Mount the new board on the standoffs and reconnect each harness exactly per your photos.
- Test — Restore power, run a full heat cycle, and confirm proper ignition, blower operation, and no fault codes on the diagnostic LED.
Signs You Need a Replacement
- Furnace is completely unresponsive with power confirmed at the board.
- Ignition sequence never starts or the inducer/blower won't energize.
- Persistent or nonsensical diagnostic fault codes.
- Visible burn marks, scorched traces, or corrosion on the board.
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