Funny thing is that over here in Europe the ice cream machines seem to work almost all the time. I understand that it’s because they use a different brand of machines, but I’m not sure about the details.
There they had to change the machines to the other brand because the ones they use here (us) was found to literally be designed to require a ton of maintinence so they could make money charging for repairs.
TLDR machine designed to break breaks a lot, not allowed in Europe.
They are down for maintenance frequently, but nowhere near as frequently as the American locations that have the fucked up contracts with the machine manufacturer.