Hydraulic pump spinning but nothing moves
So last night I was getting ready to wash the 5th wheel. I went to pull in the slides using my phone app. My electric slide in the front came in then i went to put in the hydraulic slides. When i hit the retract button i could hear the hydraulic pump engage but nothing moved. I tried it a couple times with the same result. I tried the landing gear also with no movement. I was standing next to the pump and reservoir which was half full with everything extended and I could physically see the pump motor move a small amount as it engaged. I mean I could see what looked like the motor torquing when pushing the button. It seemed to be free spinning. I received a phone call and went inside to try the main touch pad. It worked with no issues. I proceeded to wash the rig and used my phone to extend everything back out.
Anyone have this happen before or know what it may have been? Leaving for a week long trip 700 miles from home on Sunday and hoping o not have this issue while we are gone.
2019 Ram 3500
H.O. Cummins 1,00lb/ft Aisin Trans
Andersen Ultimate 5th Wheel Connection
2019 Sandpiper FLOK