Trane CNT08177 Defrost Board 319825-402 Quiet Operation: Engineering eliminates complex

Quiet Operation: Engineering eliminates complex internal suction and discharge valves for lower decibel levels

Automatic Reset Functionality: Minimizes system downtime by automatically restoring power to the heating sequence once safe ambient temperatures are restored

making this OEM hose an essential part of any professional service kit

Whether you are performing a mid-season York furnace repair or a proactive system overhaul

Trane CNT08177 Defrost Board 319825-402 Quiet Operation: Engineering eliminates complexWhen resolving ice accumulation issues on outdoor heat pump coils, the Trane CNT08177 Defrost Board is the precise field replacement required for residential and light commercial units. This OEM Trane control board (superseding CNT07932 and D161244G01) manages the critical transition between heating and defrost modes. By monitoring the outdoor ambient temperature and liquid line thermistors, the Trane CNT08177 ensures the reversing valve and outdoor