Manager asked to look at drawer cooler. Found cooler temp at 47 degrees. Checked actual temp and display reading correct. Removed back of unit and checked pressures. Unit very low on charge pulling vacuum. Used leak detector to check for leaks but not getting any hits prob due to being out of refrigerant. Charged unit with 8oz of refrigerant and pressures improved and began cooling. Checked for leaks and found leaking from evaporator. Will need to replace evaporator and cap tube. Will order parts and return. 11/16/20 Removed faulty evaporator from unit. Sweated cap tube from drier and evap. Installed new evaporator and filter drier and brazed in cap tube and pipe connections. Held 100psi on system for 20 min and found no leaks. Pulled vacuum and charged unit. Ran unit and came down to temp normally. Unit ok at this time.