Powerpole blade creeping down overnight??

[Jlb123]

I have installed several power poles and have never ran into this issue. I installed a new blade 8 2 days ago and followed priming instructions to the t and I have no hydraulic leaks but the pole will not stay up tight and will open a few inches when trailering or sitting overnight with battery power cut off to the pump. I contacted powerpole and they were great as usual and are sending another pump but I would really like to understand whats going on to cause this. I have the app and have changed the sensitivity and installed the latest update but it still creeps down. Any info appreciated.

[mysuzytoo]

I had one do the SAME thing. New pump cured it!

[Jlb123]

Did they tell you what was the cause? Other than “the pump”

[Casslaw]

There is either air in the system somewhere or a bad seal in the pump that is letting air into the system allowing the sealed hydraulic system to not hold pressure and bleed down.

[Jonestrollingmotor]

Most likely a check valve in the pump allowing the fluid to back feed instead of holding pressure. Could be a small piece of debris in one of the check valves.
John