Samsung Microwave MS840CB Troubleshooting and Repair Help

We’ve put together a list of symptoms for Samsung Microwave model MS840CB below. The top three symptoms for MS840CB are "Noisy", "Tray won't turn", and "No heat". Click on your symptom to see what causes it and how to fix it. With step by step instructions, repair info, and how-to videos, you’ll see just how easy it is to fix your broken MS840CB Samsung Microwave.