How do I adjust the power levelthen start the

As you didn't specify any specific model, one of the Samsung models uses this scheme to change power levels.

You begin by pressing the "Microwave" button once. Pressing it again will display different power levels, from low to high.

Press the power button until you get the desired power level.

Place the items inside the unit and close the door. Set the cook time, then press the "Power Level" button. When the display asks for input, press "5" for 50% power. Then press START.

Tips to Silence Hamilton Beach Microwave includes cleaning the interior, placing the microwave on a stable surface, using microwave-safe dishes and containers, repositioning the microwave in an open area with ample ventilation, checking for loose parts, using lower power settings, investing in noise-canceling mats, and checking the exhaust fan. To adjust power settings, start the microwave by pressing the "Start" or "Time Cook" button, ensure the microwave is placed on a level surface, and avoid enclosed spaces. Regular maintenance prevents loose or damaged parts.

Source: How to Silence Hamilton Beach Microwave

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There are no heat levels on a microwave oven, only power levels. I am not aware of any method of checking the power level except to boil water. Boil water at each level and time how long it takes to boil. The lower the power, the longer it should take. If there are no differences in the time, the oven is not functioning as expexted.

Try pressing and adjusting the power level before setting the cook time, or maybe before pressing start. Worked on my Panasonic

Check the "power" level setting.

Most microwaves allow adjusting the power level from 1 to 10 (or 10 to 100 on some models). 10 (or 100) is the highest/quickest setting.

I can check mine by entering a time...then before pushing "start"....push the "power" button....and change the level if I want.

First enter the cooking time just like normal, but then you hit the power button and then hit the digit indicating the power level you want. THEN hit start and it will start cooking.

Power level 10 would be the default - what it is set to unless you manually set it lower.

Power level 0 (zero) is often the setting to use if you just want to use the oven as a timer.

Many Emerson microwave owner's manuals are available for free download here.

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