Common Questions Is the 8620-158 kit compatible with older DCL models

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

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

Utilizing an OEM Rheem start relay ensures exact electrical specifications are met

and ensure the flame sensor is clean and properly positioned

York S1-373-23868-001 Defrost Control Kit 30067439-890 Common Questions Is the 8620-158The 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