ICP Control Board Kit for RGS240HDFA0AAAA — 24V Integrated Furnace Control | Ships Today
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Overview
This OEM control board kit (part number 1183618 — KIT CONTROL BOARD) is the integrated furnace control (IFC) that manages every sequence of operation on your ICP / Tempstar / Heil RGS240HDFA0AAAA rooftop gas-electric package unit. The board reads the thermostat call, runs the inducer and ignition sequence, proves flame, energizes the gas valve and blower, and manages cooling and safety lockouts. As the brain of the unit, a failed control board can cause a wide range of faults: no heat, no fan, intermittent operation, or flashing diagnostic LED codes. Because it ships as a complete kit, it includes the components needed for a clean swap. Common symptoms include a dead unit with no LED activity, repeated lockouts despite good igniter and flame sensor, blower or inducer that won't energize, and erratic operation that doesn't follow the thermostat.
Specifications
| Spec | Value |
|---|---|
| OEM Part Number | 1183618 |
| Type | Integrated Furnace Control Board Kit |
| Brand | ICP / Tempstar / Heil |
| Control Voltage | 24 VAC |
| Function | Ignition, blower, gas valve & safety control |
| Fits Model | RGS240HDFA0AAAA |
Compatibility
Direct OEM replacement kit for the ICP / Tempstar / Heil RGS240HDFA0AAAA rooftop gas-electric package unit. Confirm part number 1183618 against your existing board before ordering, as integrated controls are model-specific.
Installation Guide
- Safety First — Disconnect power, shut off gas, and verify zero voltage at the unit.
- Access — Remove the control-compartment service panel.
- Document — Photograph every wire, plug, and terminal on the existing board before disconnecting — this is the most important step.
- Remove — Unplug the harness connectors and low-voltage leads, release the board standoffs, and lift out the old board.
- Install — Mount the new board on the standoffs and reconnect every connector and lead exactly per your photo.
- Test — Restore gas and power, run a full heat and cool cycle, and confirm the diagnostic LED shows normal operation.
Signs You Need a Replacement
- Unit completely dead with no diagnostic LED
- Repeated lockouts despite good igniter and flame sensor
- Blower or inducer motor won't energize
- Erratic operation that doesn't match the thermostat
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