Skimmer crapped out....where to start troubleshooting

[Coralgurl]

I got the skimmer apart last night and thankfully it was just a snail that got stuck in the intake. Does not appear to be any damage to the teeth (wrong terminology...) inside the pump but will test it before putting it all back together. Since I had it apart, decided it may as well get a cleaning, so soaked the pump and bubbly tray in a vinegar bath. Will still do a water change as it will be easier to put it back together without water.