maintaining correct blower timing is essential for preventing heat exchanger fatigue and ensuring optimal static pressure

Enhanced Durability: Bronze body construction prevents premature corrosion in closed-loop hydronic systems

It is compatible with Raypak 206A - 406A and 207A - 407A heater models

saving time on wiring and mounting modifications during field repairs

York S1-373-23868-001 Defrost Control Kit 30067439-890 maintaining correct blower timing isThe York S1 373 23868 001 Defrost Control Kit is an essential OEM replacement engineered to restore the automated defrost sequences in York E4TS heat pumps and compatible high tonnage units. This diagnostic driven control board manages the critical transition between heating and defrost modes based on coil temperature and compressor run time, preventing excessive frost accumulation on the outdoor coil. By precisely monitoring the defrost sensor