Report "The vent on the Eclipse pop up downdraft vent keeps going up and down by itself. If you take off the switch cover and adjust the switch bracket too high, it goes up and down continually, If you adjust it too low, it won't pop up. Anywhere inbetween, it comes up but goes back down automatically. I cannot seem to adjust it to go up and stay up. Am I using the proper adjustment or is there something else I need to try?"