Let it run. Depending on the incubator. Letting water sit in them while they are not running. Can harm the electronics. The most that can happen letting it run. Is you will have to refill the water reservoir. Good luck and happy hatching.
Get your incubator up and running. So you have plenty of time to make adjustments. To get it holding proper temp and humidity. Remember that humidity is determined by how much water surface there is. Not by depth of water. When I used that type of incubator. I found that a 60 ml syringe with a...