The Samsung CE118KFR 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.
No display and no operation at all.
Electrical malfunction.
Misadjustment or loose wiring.
Key input is not in-sequence or an open/loose connection of membrane keypad to Ass'y PCB.
Defective high voltage components.
Open or loose wiring of primary components.