High Tempreture Chicago pneumatic compressor CPE 150

I am facing two issue in my Chicago make CPE 150 compressor.

1. My machine temperature is increasing during load time and after unload Tempreture become stable and again load time temperature increases and not fall during unload and after some time machine triped at high temperature.

2. After one or two cycle of load and unload machine is continuously running on load and not unloaded at set pressure and found air leakage from Solenoid valve.

Please suggest its uegent.