ICP Furnace Control Board for RGS240LDAA0AAAA — OEM Kit 1183618 | Ships Today
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Overview
This is the genuine OEM control board kit (part number 1183618) for the ICP/Tempstar/Heil RGS240LDAA0AAAA gas furnace. The integrated furnace control board is the brain of the unit — it manages the ignition sequence, sequences the inducer and blower motors, monitors safety limits and flame, and times the heating and cooling cycles. When this board fails, the furnace may fail to ignite, short cycle, blow cold air, or stop responding to the thermostat entirely. Common failure signs include a blinking diagnostic LED, no response on a call for heat, or repeated lockouts. This kit ships with the board pre-configured for your model and includes mounting hardware.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1183618 |
| Type | Integrated Furnace Control Board Kit |
| Brand | ICP / Tempstar / Heil |
| Fits Model | RGS240LDAA0AAAA |
| Fit | OEM Replacement |
| Application | Gas Furnace Control |
Compatibility
Engineered as a direct-fit replacement for the ICP/Tempstar/Heil RGS240LDAA0AAAA furnace. As a Comfortmaker-family component, the 1183618 kit is also used across several related RGS-series models — always confirm your existing board part number before ordering.
Installation Guide
- Safety First — Disconnect power at the furnace switch and breaker; verify zero voltage with a multimeter before touching any terminals.
- Access — Remove the furnace blower-compartment service panel.
- Document — Photograph every wire and connector on the old board before disconnecting anything.
- Remove — Unplug the harness connectors, remove the mounting screws/standoffs, and lift out the failed board.
- Install — Mount the new 1183618 board, then reconnect each harness exactly per your photo.
- Test — Restore power, run a call for heat, and confirm the inducer, igniter, gas valve, and blower sequence correctly with a steady diagnostic LED.
Signs You Need a Replacement
- Furnace does not respond to a thermostat call for heat
- Blinking or solid fault LED indicating board failure
- Inducer or blower motor fails to start or won't shut off
- Repeated ignition lockouts with no gas-valve or igniter fault
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