Common Questions What are the symptoms of a failing pressure switch

fail-safe design with a stainless steel spring and EPDM rubber disc to ensure positive shut-off and reliable reseating after discharge

tight-seating performance and long-term system integrity in demanding environments

The unit features an internal motor protector that identifies overheating or overloading conditions

and Comfortmaker branded furnaces and air handlers

York 031-01095-002 Micro Board 318518-761 Common Questions What are theThe York 031 01095 002 Micro Board is a critical microprocessor control assembly engineered for high tonnage York chiller systems and industrial HVAC applications. This processor board, often identified as BRD 4901 or BRD 4904, functions as the central logic unit for managing complex operations including compressor staging, fan sequencing, and safety interlock monitoring. Built for long term reliability in demanding environments, this York PCB