Lippert Level Up jacks drifting down while in storage

[bamawig]

My Lippert Level Up system has developed a problem in the last few months. The rear and middle jacks will drift down while the trailer in in storage. The front jacks hole firm. Is anyone else having this problem? Thanks in advance.

[bamawig]

Below is the response I received from LCI. I haven't had time to troubleshoot the issue yet but wanted to share the info I have. I will update with results later.



Thank you for reaching out to us directly at LCI concerning this issue. Are all 4 rear jacks, 2 middle and 2 rear, drifting down or is it only one side of the trailer? I would start by checking the valves on the valve block near the pump assembly. The drivers side valve will have a purple wire and the passenger side valve will have a blue wire. Use a 5/32 allen wrench and turn the center set screw counter clockwise. If it does not turn, do not force it as it will break. You are checking to see if they are open. If they are not, then issue will be with a jack, or multiple jacks are internally bypassing. The middle and rear on drivers side are plumbed together and same with the passenger side jacks. If one of the jacks is internally bypassing, it can cause the other to leak down, making you think its the one drifting but could be the opposite so you will want to do cylinder bypass tests on each leg to confirm. To do a cylinder bypass test you will remove the extend hose, closest to the frame rail and usually orange, and you will want to press and hold retract for 10 seconds on each jack. If you have any fluid that comes out of the port on the jack, the jack is internally bypassing and will need replacing. If no jacks are bypassing, replace both valves for the rear legs and the issue should go away.

I have added a couple of links below that will assist. If you have any questions while doing this, you can email back or you can contact our phone techs at 574-537-8900

https://lci-support-doc.s3.amazonaws...cd_0001749.pdf

https://lci-support-doc.s3.amazonaws...cd_0001531.pdf

[bamawig]

I did the troubleshooting as described. First I checked the valves with an allen wrench and they were found to be open, i.e. turned fully in the counter clockwise direction. I verified this by closing each one a few turns and returning it to fully open. Then I did the cylinder bypass test which passed with flying colors.
I don't know if this means anything, but I did notice something. During the cylinder bypass test you are told to hold the retrace button for 10 seconds. The retract pressure switch cycled the pump 2 or 3 times during that 10 seconds once the jacks are fully retracted. Normally I retract the jacks using the "Auto Retract" function. I'm not sure what stops the "Auto Retract" function but I don't recall ever hearing the pump cycle. I did the test 2 days ago and the jacks are still fully retracted.
The next step would be to replace the valves and/or rig some type of restraint to hold the jacks up.