Trane CNT4365 Defrost Control 321042-401 To ensure rock-solid mechanical linkage

To ensure rock-solid mechanical linkage

this genuine part typically includes the thermal sensing bulb required for accurate temperature feedback to the valve diaphragm

PWM control (1500 Ohm)

As the direct replacement for the legacy 1184561

Trane CNT4365 Defrost Control 321042-401 To ensure rock-solid mechanical linkageThe Trane CNT4365 Defrost Control is a critical OEM replacement board designed to manage the initiation and termination of defrost cycles in residential heat pump systems. This solid state control board utilizes advanced logic to monitor evaporator coil temperatures, preventing excessive ice accumulation that can lead to compressor slugging or total system failure. By accurately timing the reversing valve operation and fan motor shutoff, the CNT4365