Genie S85 S/N 1708 year 1999 - Hydraulic problem

Hi guys,
We bought 1 Genie S85 S/N 1708 4WD year 1999 and we have 1 problem with Hydraulic system.
When we operated the functions, if there was no voltage went to Valve item G View attachment 158030 , all of the functions didn't operate.
If we bypass the electronic signal and provide electric to Valve G, we can operate the functions. However, the hydraulic temperature will increase rapidly and after 30mins - 1hour the machine will stop working.
We have checked 1 Genie S85 year 2000...

Genie S85 S/N 1708 year 1999 - Hydraulic problem

Genie S85 S/N 1708 year 1999 - Hydraulic problem