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This genuine OEM defrost control board (part number 1052757) is the brain of the outdoor unit on ICP, Heil, and Tempstar YA060 heat pump systems. In heating mode the board monitors coil temperature and run time, then initiates a defrost cycle to melt frost and ice off the outdoor coil — energizing the reversing valve, stopping the outdoor fan, and timing the cycle so the unit can return to efficient heating. It also coordinates compressor timing and anti-short-cycle protection. When the defrost board fails, the outdoor coil can ice over solid, heating capacity collapses, the unit may short-cycle, or the system won't run at all. Replacing the board restores proper defrost timing and protects the compressor.
| Spec | Value |
|---|---|
| Part Number | 1052757 |
| Type | Defrost Control Board |
| Brand | ICP / Heil / Tempstar |
| Control Voltage | 24 VAC |
| Application | Heat Pump Defrost Control |
| Fitment | OEM Replacement |
Direct OEM replacement for the ICP/Heil/Tempstar YA060 heat pump and other ICP-family heat pumps using this defrost control platform. Match the part number 1052757 and connector layout to your existing board before installing, and note any DIP switch / defrost-interval settings.
Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.