ICP Control Board Kit for RHH102L0AA0AAAA — OEM Part 1183618 | Ships Today

Overview

This genuine ICP OEM control board kit (part number 1183618) is the electronic brain of the RHH102L0AA0AAAA heat pump. It manages compressor staging, condenser fan operation, defrost timing, and safety lockouts, coordinating the 24V control signals from the thermostat with the high-voltage components in the unit. A failed board causes no-heat or no-cool calls, erratic defrost cycles, blower or compressor lockouts, and fault codes. Supplied as a complete kit with the hardware needed for a clean replacement.

Specifications

Compatibility

Designed for the ICP/Tempstar/Heil RHH102L0AA0AAAA heat pump and ICP-family units that specify control board kit 1183618. Match the part number to your existing board before ordering, as board revisions vary by model.

Installation Guide

1. Safety First — Disconnect power and verify zero voltage with a multimeter.
2. Access — Remove the control-panel cover to expose the board.
3. Document — Photograph every connector and wire position before unplugging anything.
4. Remove — Release the connectors, unscrew the standoffs, and lift out the old board.
5. Install — Mount the new board on the standoffs and reconnect each harness to the matching terminal per your photo and the kit instructions.
6. Test — Restore power, run a heating and cooling call, and confirm correct staging and defrost with no fault codes.

Signs You Need a Replacement

• Unit fails to start on a thermostat call
• Erratic or missing defrost cycles
• Blinking fault or diagnostic LED codes
• Compressor or fan lockouts with no other cause found

Shipping & Returns

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