A:Answer Hi Pambo - Thanks for reaching out to us regarding your new GE Microwave JES2051SNSS. This is one of our most popular models and has not been described as having a "loud engine" sound while operating. When using a power level other than HIGH or 10, the magnetron tube cycles on and off to obtain the lower power. This cycling of the magnetron tube causes this dull thumping, pulsating, or humming noise. A fan where the internal components are located will run continuously while the microwave is in operation to constantly circulate the air to cool the working parts. It is normal for the internal fan for the electronics to continue to run for a few seconds after the microwave cycle is complete, even if the door is opened. This fan does not circulate air in the cavity. We suggest to make sure the microwave is level and has plenty of air space around the case: 3" of clearance on both sides and the top and
1" clearance in the rear. Take a look at the following links- MICROWAVE AIR CLEARANCE - COUNTERTOP ONLY MODELS: https://products.geappliances.com/appliance/gea-support-search-content?contentId=21668 - MICROWAVE - ARCING OR MAKING SOUNDS: https://products.geappliances.com/appliance/gea-support-search-content?contentId=17875 - If you need further assistance, please reach out at GEAppliances.com/service or call GE Appliance Service at 1-800-GECares (1-800-432-2737); Monday – Friday: 7 a.m. – 10 p.m. ET,
Saturday – Sunday: 8 a.m. – 6 p.m. ET. Keep in touch! Sue