ICP Control Board Kit for RHS150H0EA0AAAA – OEM Defrost Control | Ships Today

Overview

This genuine OEM control board kit (part number 1183618) fits the ICP Tempstar/Heil RHS150H0EA0AAAA heat pump. The board is the brain of the outdoor unit — it manages the defrost cycle, sequences the compressor and reversing valve, monitors the defrost thermostat, and handles 24V control signals from the indoor thermostat. When this board fails, you'll see no defrost (ice buildup on the coil), failure to switch between heat and cool, a unit that won't energize, or erratic cycling. Supplied as a complete kit with mounting hardware and instructions, this replacement restores correct heat pump operation and protects the compressor.

Specifications

Compatibility

Designed for the ICP Tempstar/Heil RHS150H0EA0AAAA and compatible ICP, Tempstar, Heil, and Comfortmaker heat pump condensers that use the 1183618 control board kit. Confirm your existing board part number before ordering.

Installation Guide

1. Safety First – Disconnect the breaker and outdoor disconnect; verify zero voltage with a multimeter.
2. Access – Remove the condenser control-panel cover to reach the board.
3. Document – Photograph every harness connector and wire position before unplugging anything.
4. Remove – Disconnect harnesses, release the board standoffs/screws, and lift out the old board.
5. Install – Mount the new board on the supplied hardware and reconnect each harness exactly per your photo.
6. Test – Restore power, run a heating and cooling call, and verify proper sequencing and a forced or timed defrost cycle.

Signs You Need a Replacement

• Outdoor coil ices over with no defrost cycle.
• Heat pump won't switch between heating and cooling.
• Compressor or fan fails to energize on a call.
• Erratic short-cycling or no response to the thermostat.

Shipping & Returns

Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.