Sat Jul 20 2013

Steris 3085SP No leg down function

I just replaced the control block assembly as the old one had several leaks and the customer opted to go with a full replacement due to age.  Once the install was complete, it appears I have lost my leg down function.  Solenoids are energizing.  Assumed possible failures of new check valves, springs or solenoid coil or solenoid valve in control block and replaced with the old ones.  That did not work.  I feel I have to be missing something and thinking I have been staring at it to long and looking at the wrong area.  

Steris tech support is slightly baffled when I spoke to them.

When I activate the leg down functin, solenoids energize and pump activates.  The leg section begin to drop but only from gravity.  So it appears the valves are opening but the pump is not flowing oil back to the resevoir.

All other functions and directions work properly.  

Thanks in advance for any advice.


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