Checked Walk-In Freezer fans on condenser unit and found fans are wired on the same side of contactor as compressor so when compressor shuts off so do fans, unit is wired properly and working properly at this time
Found Prep Table unit low on refrigerant due to a leak at the rail expansion valve. Will get valve and return. 5/09/19 Replaced rail txv and filter dryer, Checked welds with nitrogen for leaks and found none, Vacuumed and recharged with factory amount of 134A, unit came down to temperature and cycled off, compressor valves are very noisy, compressor may need replaced in near future, unit is working properly at this time.
At location staff stated Dishwasher unit overflows and not temping. I tested and unit overflowed. I removed covers and checked over unit and found sensors dirty in side the bin and at the ones in the element compartment. I cleaned all sensors and tested, unit is working well and temping properly now.