Samsung Microwave MW840WC Troubleshooting and Repair Help

We’ve put together a list of symptoms for Samsung Microwave model MW840WC below. The top three symptoms for MW840WC 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 MW840WC Samsung Microwave.