I’d check a couple of things.
It’s possible that the fan might have burnt out, or it might just be stuck, or it might be part of the cleaning program to have the fan shut down after a time. Looks like you have a Basic machine from your profile information, so fortunately that is a much easier fan to clean manually.
You can try cleaning it by hand first until support can get back to you. It might not work, but it might help to determine if the fan is shot and needs to be replaced or if it can be salvaged.
There is a detailed writeup on how to clean the exhaust fan for Pro models by hand here. (It’s harder to reach the blades in a Pro, you shouldn’t have any trouble doing it with a Basic.)
But follow every instruction in the writeup carefully - you don’t want to compound the issues. Make sure to use a very dry swab on the blades (barely moist) and let it dry for a full 24 hours before trying to fire it back up. Patience is going to be key.
Good luck with it. 