Your humidity should be about 65% for lockdown. If you want to work on the pump without risking getting the humidity too high during lockdown, just remove the end of the tubing from the incubator (leave the rigid tubing in place and just disconnect the flexible tubing) and place it in a bowl to...
If the pump is moving, but water is not being moved, make sure you have no pin holes in the tubing. Then there are a couple of things you can try that I have found helpful. First, try to put the humidity pump up so it is higher than the incubator. Let gravity help move the water. Next, I usually...