Since you know which control knob you spilled the water on (?) you might want to try putting a hair dryer on low heat and try to dry the microswitch that should be in the proximity. If you can loosen the microswitch and shake it out or blow it out with compressed air , that may help too. Since it was just water and not your famous Cajun Jambolia it has a good chance of clearing up. However you want to get the water out before it starts rusting. I dont have a picture of the electrical switch, so you may have to adapt a little to get it dried out.