Microwave Troubleshooting: Microwave making noises

If your microwave is making noises like a Geiger counter, the sound is coming from the magnetron that produces the microwaves. This sound is normal and there’s no reason to be alarmed.

Is your microwave making strange or loud noises?

If your microwave makes strange or loud noises when it’s in standby mode, something could be wrong with your fan. Check to see if the noise stops after a while. If it doesn’t, please contact Bosch Customer Support at 1-800-944-2904 for troubleshooting assistance.