I thought I've asked this question somewhere before but I cannot find it.
When a machine enters an error state, e.g. a printer runs out of ink, it will usually display an error message and stop working until the user has noticed the error condition and maybe, done something to fix it (e.g. replace the ink cartridge).
Printers may re-initialize when the housing is closed again, a digital camera may require an input in order to retry moving a stuck lens.
I have to label a button that starts this re-initialization process on a machine, or that causes it to retry whatever it failed to do previously.
What would that be called?