Larry,
Pull it out, empty the feed, and dry the feeder out. Unplug the battery, first. Pull the timer out, but don't worry about the driver motor. Call Sweeney and talk with Louis Schorp or one of the technicians. They will tell you what to do. I have had this happen on several occasions with client feeders, and the Sweeney feeder usually make it through the wetness. At worse, you may need to replace the timer.
I've been watching the weather, and thought you may have gotten some good rain.

Teach a man to grow fish...
He can teach to catch fish...