If your microwave is experiencing issues like unexpected shutdowns, incorrect timer functions, or failing to start, it might be time to replace the main control board. This genuine Samsung microwave main control board (DE92-03624E) is designed for your 2.1 cu. ft. over-the-range microwave. A faulty control board can disrupt the operation of your microwave by mismanaging power levels and cook times. It's a straightforward fix for those comfortable working with electronics. Verify your device's model number for compatibility before purchasing.