Just checking you ran the engine with a door open until the compressor cuts off?
That way you know the tank is full pressure before you try and raise the vehicle.
Otherwise it will take a very long time to rise.
Also check the EAS relay under the seat is properly plugged in, just incase it got disturbed. You can also swap those for a yellow relay to test it is working.
I leave a yellow relay in mine to prevent the vehile auto levelling, but you do need to have the proper EAS relay in to do diagnostics.
If the RWS diagnostic did not show any faults and the system was operating as it should before hand, it sounds like one of the pressure lines may have popped out allowing pressure to escape.
I had a similar thing happen once, it turned out to be the o ring in the compressor head under the reed valve was broken, so even though the compressor was operating as it should, it was unable to pressurise the system, as air was escaping instead of filling the air tank.
If you have just fitted new o rings there when you re sleeved the compressor, something could have become unseated.
Hope that is of some help.
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