Check the solenoid valve on the rinse piping at the top back of the machine. shut water off and take the coil and the top off of the solenoid, carefully remove the innards (so as not to lose them and to remember how they went together) check for debris inside and clean out. Put it back together and try it. If that doesn't work, you will need to replace the solenoid valve. Cost is around $100 at Grainger for a suitable valve or if you want factory part, it is around $350 from Hobart.
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Check the solenoid valve on the rinse piping at the top back of the machine. shut water off and take the coil and the top off of the solenoid, carefully remove the innards (so as not to lose them and to remember how they went together) check for debris inside and clean out. Put it back together and try it. If that doesn't work, you will need to replace the solenoid valve. Cost is around $100 at Grainger for a suitable valve or if you want factory part, it is around $350 from Hobart.