Sanyo EM-U1000W Microwave Oven Logo
Randy Garcia Posted on May 13, 2007
Answered by a Fixya Expert

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Microwave is on but the keypad doesnt respond

I came home from college and I brought my microwave back and when I tried to plug it in at home it didn't work. The display screen lights up, but no numbers come on, and when I press the buttons on the keypad theres is no response from the microwave. The light bulb turns on when I open the door, and when I unplug it and plug it back in it makes a beep, but thats about it. What can be wrong with it?

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William Miller

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  • Sanyo Master 9,179 Answers
  • Posted on May 14, 2007
William Miller
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Joined: Sep 15, 2006
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It may be in child lock mode. Your owner's manual will cover that. On the Sanyo EM-S5595, for example, you turn the child lock off and on by pressing and holding the STOP/CLEAR pad for 3 seconds. Yours may be the same. You may also have a bad keypad, which in many cases can be replaced. A bad keypad may be worn out due to age, may be damaged, or it may have gotten wet or otherwise contaminated. Moisture and contamination can be caused by not using the fan when boiling on the stove top, direct spraying of cleaners, by storing the microwave in an unheated garage or shed, or by infestation. I warn my customers to never spray cleaner directly onto the microwave keypad, since the liquid can get inside and "lock up" or even ruin the keypad or controller. Instead apply an alcohol-based cleaner (such as the purple kind) to a cloth (since paper towels can scratch) and gently wipe it off. I suggest to my customers that they NEVER use any ammonia-based cleaner (like the blue stuff) on a microwave, since the ammonia will crack and distort polycarbonate plastics. If it looks like you need service, this is a good place to start: http://www.sanyoservice.com/

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1 Check the power supply. Make sure the microwave is firmly plugged into a working electrical outlet and that your wall outlet is active if your home uses outlets controlled by a wall switch. Check your home's fuses or circuit breakers to ensure they have not been tripped. Without power the microwave will not respond to any input.

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1 Check the power supply. Make sure the microwave is firmly plugged into a working electrical outlet and that your wall outlet is active if your home uses outlets controlled by a wall switch. Check your home's fuses or circuit breakers to ensure they have not been tripped. Without power the microwave will not respond to any input.

2 Make sure the parental lock is inactive. Some ovens, like the one shown in the image above, feature a keypad lock to prevent children playing with the controls. Most keypad locks can be cancelled by holding down a button or combination of buttons for a few seconds.

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