ICP Control Board Kit for RHH120S0EA0AAAA — OEM Replacement | Ships Today
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Overview
The genuine OEM control board kit (part 1183618) is the electronic brain of the ICP / Tempstar / Heil RHH120S0EA0AAAA heat pump. It manages compressor staging, fan operation, defrost timing, and safety lockouts, interpreting thermostat and sensor inputs to run the system safely. A failed board often shows up as intermittent operation, no response to the thermostat, error/fault LEDs, or a unit that won't run at all. This kit ships with the components needed for a complete board replacement.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1183618 |
| Type | Control Board Kit |
| Brand | ICP (Tempstar / Heil) |
| Application | Heat Pump Control |
Compatibility
Designed for the ICP / Tempstar / Heil RHH120S0EA0AAAA and other ICP-family units specifying control board kit 1183618. Match the existing board's part number and connector layout before installing.
Installation Guide
- Safety First — Disconnect power and verify zero voltage with a multimeter.
- Access — Remove the control/electrical panel cover.
- Document — Photograph every plug and wire on the existing board.
- Remove — Unplug all connectors and unscrew/unclip the old board from its standoffs.
- Install — Mount the new board and transfer each connector to the matching header per your photo.
- Test — Restore power, confirm no fault codes, and verify heat, cool, and defrost operation.
Signs You Need a Replacement
- Unit unresponsive to thermostat calls
- Error or fault LED codes on the board
- Intermittent shutdowns or random cycling
- Defrost or staging not functioning correctly
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