ICP Control Board Kit for RHH072S0AA0AAAA — OEM Replacement | Ships Today
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Overview
This genuine OEM control board kit (part #1183618) is the electronic brain of the ICP / Tempstar / Heil RHH072S0AA0AAAA heat pump. It manages the unit's operating sequence — energizing the compressor contactor, switching the reversing valve between heating and cooling, controlling the condenser fan, and running the timed defrost cycle in heat-pump mode. The board interprets 24V signals from the thermostat and inputs from the defrost thermostat and pressure switches, then sequences each component safely. When this board fails, the entire outdoor unit can go dark or behave erratically: no response to thermostat calls, a compressor that won't stage, a stuck defrost cycle, or a reversing valve that won't switch between heat and cool.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1183618 |
| Type | Control / Defrost Board Kit |
| Brand | ICP / Tempstar / Heil |
| Control Voltage | 24V |
| Application | Heat Pump Outdoor Unit |
| Fits Model | RHH072S0AA0AAAA |
Compatibility
Direct OEM replacement kit for the ICP, Tempstar, Heil, and Comfortmaker RHH072S0AA0AAAA heat pump. Supplied as a complete kit with mounting hardware and instructions for a straightforward swap.
Installation Guide
- Safety First — Disconnect power at the breaker and outdoor disconnect; verify zero voltage with a multimeter.
- Access — Remove the control-compartment service panel.
- Document — Photograph every wire and connector on the old board before removing anything.
- Remove — Unplug the harnesses, release the board standoffs, and lift out the failed board.
- Install — Seat the new board on its standoffs and reconnect each harness exactly per your photo, matching terminal labels.
- Test — Restore power and verify the unit responds to heating, cooling, and defrost calls.
Signs You Need a Replacement
- Outdoor unit completely unresponsive to thermostat calls
- Reversing valve won't switch between heat and cool
- Defrost cycle stuck on or never initiates, causing coil icing
- Visible scorch marks, swollen relays, or burnt traces 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