If your microwave is making noises like a Geiger counter, the sound is coming from the magnetron that produces the microwaves. The sound is normal and there’s no reason to be alarmed. If your microwave makes noises when it’s in standby that are somewhat loud or strange, something could be wrong with your fan run on. Check to see if the noise stops after a while. If it doesn’t and your microwave still makes strange sound, please contact our customer service department. You can reach us on <CustSerPhoneNo> around the clock, 7 days a week. We’ll repair your microwave quickly, expertly and for a fair price. We’ll help you further and ensure that your microwave is soon making only the sounds it’s supposed to and works as usual.