The frame is almost never shut off (main reasons would be maintenance or moving).

The chamber controller should be shut off and the chamber unplugged at the end of the day.

Dry the inside of the chamber

Leave the door of the chamber open for a while (15 min) to avoid moisture.

Remove the grips and DRY them with a rug.

Put them on a rug on a table. It will take roughly an hour for the grips and pull rods to return to ambient temperature if they were below -50C.