ICP Defrost Control Board for YL030GB1 — 24V Heat Pump Board | Ships Today

Overview

This is a genuine OEM defrost control board (part number 1069364) for the ICP/Tempstar/Heil YL030GB1 heat pump. The defrost control board manages the outdoor unit during heating season. It tracks coil temperature and compressor run time, then starts and ends the defrost cycle to keep the outdoor coil free of frost and ice. It also sequences the reversing valve, outdoor fan, and auxiliary heat so the unit can defrost without blowing cold air into the home. A failed 24V board commonly causes the coil to ice over, the unit to run constant or no defrost cycles, mode-switching problems, or full system lockout.

Specifications

Compatibility

Direct OEM replacement for the defrost control on the ICP/Tempstar/Heil YL030GB1 and equivalent heat pumps in the same family that originally shipped with board 1069364. Confirm your existing board part number and connector layout before ordering.

Installation Guide

1. Safety First — Disconnect power at the disconnect and breaker, and verify zero voltage with a multimeter before touching the board.
2. Access — Remove the outdoor unit's control/access panel.
3. Document — Photograph every wire and connector position on the old board before disconnecting.
4. Remove — Unplug the harness connectors and low-voltage leads, then unscrew or unclip the failed board from its standoffs.
5. Install — Mount the new board and reconnect each wire and connector exactly per your photos.
6. Test — Restore power, call for heat, and confirm a normal defrost cycle and reversing-valve operation.

Signs You Need a Replacement

• Outdoor coil freezes solid and never defrosts in heating mode
• Unit runs constant or excessively frequent defrost cycles
• Heat pump won't switch between heating and cooling
• No outdoor unit operation or intermittent lockouts

Shipping & Returns

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