The Samsung SMH7159WC/BC/CC Oven has some known problems that occur often. Here are some easy to do solutions for the problems or error codes your Samsung might be giving you.
The microwave door might be damaged, affecting its ability to function properly.
The power goes off before the set time has elapsed.
The microwave does not start, possibly due to a circuit breaker or fuse issue.
The microwave is in demo mode, preventing normal operation.
The microwave's display works, but the power won't come on.