James C Clarksville , TN April 06, 2026 Appliance: Bosch Microwave HMV8052U/01 Main system board was defective in bosch microwave Replaced the Main system board because it was working intermittently, numbers we not showing completely on display and would not start some times. The top of the Microwave Grill which houses the micro filter was previously broken where the top screw secured it to the unit. Replace it along with the micro filter. Read More... Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes Tools: Screwdrivers