A couple of things I would like to add to my original comments, for any underlying fault/problem for that particular machine, and the possibilities regarding any "employee/operator errors:"

From the "Operating Instructions" manual:

AUTOMATIC REFRIG... Login to read more.

iATN Members:
Login to read this message and participate
Auto Repair Pros:
Join iATN to read this message and others
Vehicle Owners:
Find a nearby iATN member to repair your vehicle