Dear Friends,

When we pump down a cycle, after a while pressure of suction increases, Would it be possible to let me know :

Increasing suction pressure is as result of leakage on discharge valve or it is as result of leakage on liquid line solenoid valve ?
It means, Discharge valve can not 100% close the route or liquid line solenoid valve can not 100% close liquid line ?

Which one is true ?

Sincerely yours.