ICP Control Board Kit for RHH072L0CA0AAAA — OEM Replacement | Ships Today

Overview

This genuine OEM control board kit (part #1183618) is the electronic brain of the ICP / Tempstar / Heil RHH072L0CA0AAAA 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 reads 24V signals from the thermostat plus inputs from the defrost thermostat and pressure switches, then sequences each component safely. When this board fails, the outdoor unit can go completely dark or act 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

Compatibility

Direct OEM replacement kit for the ICP, Tempstar, Heil, and Comfortmaker RHH072L0CA0AAAA heat pump. Supplied as a complete kit with mounting hardware and instructions for a straightforward swap.

Installation Guide

1. Safety First — Disconnect power at the breaker and outdoor disconnect; verify zero voltage with a multimeter.
2. Access — Remove the control-compartment service panel.
3. Document — Photograph every wire and connector on the old board before removing anything.
4. Remove — Unplug the harnesses, release the board standoffs, and lift out the failed board.
5. Install — Seat the new board on its standoffs and reconnect each harness exactly per your photo, matching terminal labels.
6. 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.