ICP Control Board Kit for RHS240S0EA0AAAA — OEM Replacement Circuit Board | Ships Today
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Overview
This genuine OEM control board kit (part 1183618) is the electronic brain of your ICP / Tempstar / Heil RHS240S0EA0AAAA. It manages defrost timing, fan and compressor sequencing, safety interlocks, and the 24V control logic that coordinates the system. Control boards fail from power surges, corrosion, heat stress, or aged components — symptoms include a unit that is completely dead, won't enter or exit defrost, short-cycles, runs erratically, or shows fault/diagnostic LED codes. Because it ships as a kit, the genuine board arrives with the correct hardware and connectors for a clean, factory-matched replacement.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1183618 |
| Type | Control Board Kit |
| Brand | ICP / Tempstar / Heil |
| Control Voltage | 24V |
| Function | Defrost, sequencing & safety control |
| Fit | OEM |
Compatibility
Designed for the ICP / Tempstar / Heil RHS240S0EA0AAAA and related RHS240 heat pumps that use this board kit. Match the printed board number to part 1183618 and confirm connector layout before installing.
Installation Guide
- Safety First — Disconnect power at the disconnect and breaker, then verify zero voltage with a multimeter.
- Access — Remove the control-panel service cover.
- Document — Photograph every plug and wire harness on the existing board before unplugging.
- Remove — Unplug all connectors and unsnap or unscrew the old board from its standoffs.
- Install — Mount the new board on the standoffs and reconnect each harness to its matching header per your photo.
- Test — Restore power, watch the diagnostic LED for normal status, and run a heating and cooling cycle.
Signs You Need a Replacement
- Unit completely unresponsive with 24V present
- Will not enter or exit defrost properly
- Erratic operation or random short-cycling
- Fault/error LED codes 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