Icemaker Limit switch repair

I have a home soda fountain. The icemaker for the coldplate is a modified icemaker, that uses a limit switch with a little paddle to detect when the ice compartment is full, and therefore stops making ice so the little dump mechanisim doesn't force itself against a pile of ice and break. (this was not my design, soda-parts.com)

The limit switch is basically the weak link in the entire design. Every 6 months or so the innards of the switch break down (from all that water) and the switch fail