Our troubleshooting tips will give you step-by-step directions on how to get your microwave heating your favorite foods in no time. Click on the symptom that matches your Samsung microwave problem. We'll provide a list of possible causes, have replacement parts ready and offer helpful videos so you can make the repair yourself. If the problem requires an electronic part you'll want a licensed technician to do the job. Microwave ovens can store large amounts of electricity even when they're unplugged, and repairs can be dangerous.