ICP Control Board Kit for RHH072S0CA0AAAA — OEM 1183618 Replacement | Ships Today
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Overview
This is the OEM control board kit (part number 1183618) for the ICP RHH072S0CA0AAAA heat pump. The control board is the brain of the unit — it manages the defrost cycle, sequences the compressor and reversing valve, monitors safety inputs, and energizes the fan and auxiliary heat. When a control board fails, the system may stop responding to thermostat calls, run continuously, lock out, or fail to switch between heating and cooling. Symptoms commonly include no operation at all, intermittent shutdowns, error/fault LED codes on the board, or a unit that ignores defrost timing. Installing the correct factory kit restores reliable, fully-sequenced operation. Sold as a complete replacement kit so all required hardware ships together.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1183618 |
| Type | Control Board Kit |
| Brand | ICP (Tempstar / Heil) |
| Fits Model | RHH072S0CA0AAAA |
| Application | Heat Pump |
| Fitment | OEM Direct Replacement |
Compatibility
This control board kit is the factory-specified part for the ICP/Tempstar/Heil RHH072S0CA0AAAA heat pump. ICP, Tempstar, Heil, and Comfortmaker units frequently share component part numbers, so this kit may also service related models that call out part 1183618. Always verify the OEM part number stamped on your existing board before ordering.
Installation Guide
- Safety First — Disconnect power at the breaker and disconnect, then verify zero voltage with a multimeter at the board terminals.
- Access — Remove the service/control panel to expose the board.
- Document — Photograph every wire and connector position before disconnecting anything.
- Remove — Label and unplug each harness, release the board standoffs or mounting screws, and lift out the old board.
- Install — Mount the new board on the standoffs, reconnect every harness exactly per your photos, and set any jumpers/DIP switches to match the original.
- Test — Restore power and run a full heating and cooling call; confirm the compressor, reversing valve, fan, and defrost sequence operate correctly.
Signs You Need a Replacement
- Unit does not respond to thermostat calls in heat or cool
- Fault/error LED flashing a diagnostic code on the board
- Defrost cycle never initiates or runs erratically
- Compressor or fan won't energize despite 24V control signal present
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