ICP Control Board Kit for RHS240H0EA0AAAA — OEM Defrost Board | Ships Today

Overview

This OEM control board kit (1183618) is the electronic brain of the ICP RHS240H0EA0AAAA heat pump. It manages defrost timing, compressor and reversing-valve sequencing, fan operation, and the low-voltage safety circuit. When the board fails, the symptoms range widely — the unit may ice over because defrost never initiates, the compressor may not energize, or the system may lock out and ignore thermostat calls entirely. Because it ships as a complete kit, this replacement includes the hardware and connectors needed for a clean, reliable swap that restores full heat-pump control.

Specifications

Compatibility

Direct OEM fit for the ICP RHS240H0EA0AAAA heat pump and matching Heil, Tempstar, Comfortmaker, and Arcoaire RHS-series units that use the same board platform. Verify the board part number against your existing unit before ordering.

Installation Guide

1. Safety First — Disconnect all power and verify zero voltage with a multimeter before opening the control box.
2. Access — Remove the control-box service panel from the condensing unit.
3. Document — Photograph every harness connector and terminal landing on the existing board before unplugging.
4. Remove — Unplug the harnesses, release the standoffs or screws, and lift out the old board.
5. Install — Seat the new board on its standoffs and reconnect each harness to the matching terminal per your photos.
6. Test — Restore power, call for heat and cool, and confirm proper sequencing and a defrost cycle.

Signs You Need a Replacement

• Outdoor coil freezes over — no defrost cycle.
• Compressor or reversing valve won't energize on demand.
• System lockout or no response to thermostat calls.
• Visible burn marks, scorching, or failed relays on the board.

Shipping & Returns

Ships same day on orders placed before 3 PM CST. 30-day hassle-free returns. Backed by the National HVAC Parts fitment guarantee.