compressor discharge lines

How do I troubleshoot a 10727903 pressure switch that won't close

Scaled ( 65 to 85 Degrees )

and M9220 series power units

As a direct Re-Verber-Ray replacement part

ASCO 8220G407-24V Solenoid Valve 30067439-890 compressor discharge linesThe ASCO 8220G407 24V Solenoid Valve is a high performance, 2 way normally closed control solution engineered specifically for demanding steam and hot water applications. Featuring a 3 4 inch NPT connection and a robust brass body, this pilot operated valve delivers a high flow coefficient of 8. 8 Cv, ensuring efficient fluid management in industrial HVACR systems. Designed to handle 24Vac power, it operates reliably within a pressure range of 5 50