Quantum HD Slide Valve not responding

[cookieman]

We are running a frick Screw off of Quantum HD panel. The slide valve will not respond (load or Unload). It will not respond from manual, auto, or remote attempts. I've checked output fuses and they are good. To me it seams to be a configuration/communications issue that I cant track down. Any Advise?

[mbc]

Hi
Check the solenoid valves.
And all valves
Also oil pressure

[RANGER1]

cookieman,
What Frick model compressor do you have, like TDSH,SGC,XJS etc.
There are a few differences with potentiometers.
Like mbc suggests, can you determine if load, or unloading solenoid is getting energized.

[NH3LVR]

Does the Solenoid have the capability to be operated manually by depressing the ends?