ICP Control Board for RGS240HSAA0AAAA - OEM Furnace Control Kit | Ships Today
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Overview
This OEM control board kit (part 1183618) is the integrated furnace control that manages the entire heating and blower sequence on the ICP / Tempstar / Heil RGS240HSAA0AAAA rooftop gas-electric package unit. The board reads the thermostat call, runs the inducer and ignition timing, monitors the limit and pressure safeties, sequences the gas valve and igniter, and times the blower on and off delays. When this board fails you typically see a dead control circuit, repeated ignition lockouts with no clear mechanical cause, blowers that will not start or will not shut off, or a flashing diagnostic LED fault code. The kit ships with the correct firmware, plug layout, and mounting standoffs so it drops into the original harness without rewiring.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1183618 |
| Type | Integrated Furnace Control Board Kit |
| Brand | ICP / Tempstar / Heil |
| Control Voltage | 24 VAC |
| Function | Ignition, blower, and safety sequencing |
| Fit | OEM Direct Replacement |
Compatibility
Engineered for the ICP-family RGS240HSAA0AAAA packaged rooftop unit and the matching Tempstar, Heil, and Comfortmaker RGS240 builds. Match the printed board number and connector layout against your existing control before ordering.
Installation Guide
- Safety First - Disconnect power and verify zero voltage with a multimeter on the line and 24V terminals.
- Access - Remove the control-compartment service panel.
- Document - Photograph every connector and wire color on the old board before unplugging.
- Remove - Unplug each harness connector, release the board standoffs or screws, and remove the old board.
- Install - Seat the new board on its standoffs and reconnect each harness to the matching plug per your photo.
- Test - Restore power and confirm a full heat cycle - inducer, ignition, gas valve, and blower - with no fault code.
Signs You Need a Replacement
- No response at all on a heating or cooling call.
- Repeated ignition lockouts with no mechanical fault found.
- Blower that will not start or will not shut off.
- Flashing diagnostic LED reporting a control or internal fault.
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