I worked in hungry jacks (aussie burger king) for 7 years, we share the same machines as the aussie Mcdonalds.
Before watching the video i'll state what i learned.
1. The stores MUST use that supplier and no other, as part of their franchise.
2. The machines have a lifetime warranty, but repairs must ONLY be done through one repair company
3. That company only stocks parts for the latest machines, so older machines can take months to get a part manufactured (we'd often have downtime of 3-4 MONTHS unless they bought another store a new machine and we got their old one)
4. the machines are worth something like $40K, so they simply cant be replaced with the new models easily (or fast, orders take a year or so to arrive here)
They get torn down for cleaning every 14 days, and we'd always find mould, cracked seals and gross shit inside it - and you never know how long the issue has been present before that cleaning. Then store management has a decision to make about cleaning it up and hoping for the best, or losing sales...
the 4 hour cleaning cycle is correct, but that was always started at 7am on a monday morning... never in peak sales periods
edit: ah they mean the heat cycle... that happens at midnight. You know, when the store was closed?
Edit: we used the C602 from the video