4 ms·It is the equivalent to the very important advice for engineers: "Switch it off and on again!"by Archelaos 4y agoIt is the equivalent to the very important advice for engineers: "Switch it off and on again!"lbriner 4y agoThat's not the same though. Switching it off and on might clear the problem for now but it doesn't explain why the problem occurred and how to avoid it happening again.Archelaos 4y agoAnd “check if the handle opens the door” explains the problem and avoids it happening again?