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Keys 3, 6,9,8 and the start button won't work

I have a Emerson microwave model#8780sb.  It won't acknowledge those keys when pushed.  When I try and push start, the cook light turns red.  Could it be the child lock?  If so what would the code be to unlock it?  Thaks for your help!  I have only had for less than a year.

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Re: keys 3, 6,9,8 and the start button won't work - Emerson MW8107WA Microwave Oven Microwave Ovens

First read user manual, and use properly .

Posted on Oct 29, 2007

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One of the door switches is malfunctioning and must be replaced to resolve the issue.

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My Jenn-aire microwave says locked and has a picture of a padlock. I was microwaving bacon and had just put it some to cook ( my second batch per se) and everything was locked up. I tried pushing options...

Most likely you set a child lock (front panel lock) by holding a button too long (3 seconds). Without a model number, I can't be absolutely sure of the keypad lock for your Jenn-Aire microwave. Usually, the key will have a small padlock icon on it. Press and hold this key. On my microwave you press and hold Start to toggle the lock off.

On a Jenn-Aire JMW2430 and similar models, the Button Lock is activated by a several step process (More and Button Lock). However, pressing and holding the Start button will deactivate it.

I hope this helps.

Cindy Wells

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I have Emerson Microwave #mw8999sv which has the Express Cook option- cooking 1 - 6 minutes. How do I cook for 1 minute 30 seconds, etc.? Thank you.

The owner's manual is here. On page 10 we find:

1. Press the POWER button; the Microwave and High
Cook indicators will light and “PL 10” will light in the
2. Press the POWER button different times to set the
desired power; the display will show the percentage
you chose. If selecting power level 70%-10%, the
Low Cook indicator will light instead of the High
Cook indicator.
3. Press number keys to set the desired cooking time.
4. Press the START/+30SEC. button to start cooking;
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blink and the display will countdown the remaining
cooking time in minutes and seconds. It will beep
five times when cooking is completed.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Sep 08, 2009 | Emerson Microwave Ovens

2 Answers

My mother just bought an Emerson MW8119 Microwave and can't figure out how to only set say 15 seconds cook time. Is it possible?

Hi! I just purchased the same microwave, and came online to find the solution. I was then able to find the correct answer to this problem. On this model, Emerson does not put a "time cook" button for odd cook times such as 15 seconds. Instead, they have you push the "Power Button" prior to setting the cook time.

If you want to cook on full power, press the power button once, and then enter your cooking time and press start. If you want to cook on 50% power or 30% power or something like that, push the "Power Button" several times until the appropriate power level is displayed, then enter the cook time and press start.

The reason that it starts up right away when *********** pushes the 1 button is because Emerson has the quick cooking feature for 1 minute through 6 minutes. You only have to push the number once to get the 1 minute cook time or anywhere through 6 minutes respectively.

Hope this helps!

Jun 22, 2009 | Emerson Microwave Ovens

1 Answer

'Start' button won't depress, seems jammed; timer knob broke off

the button is stuck because of food buildup over the years underneath the button, this happens even to newer ones after about a year of use, new microwaves are cheap and the lower end models start at only $35 from walmart I would reccomend buying a new one, newer microwaves use less power and are more effecient so a new one will pay for itself in saved electricty costs after about 2-3 years of use.

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1 Answer

Emerson microwave, #MW8119SB, push start button to start cooking

Replace the fuse with a ceramic fuse from Home depot! costs less than $3 and it will fix the problem. I had all the same problems as everyone else, you name it my microwave had it! you must remember replace it with a ceramic fuse! not a glass one. I know people say its the switchboard and all that nonsence but I promise you, the fuse plays a majoe roll in the microwave not working properly. Even though it doesnt look broken, a junky fuse can cause your appliance to do very strange things. I replaced mine 6 months ago and it works like its fresh out of the box.

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I don't have this particular microwave, but generally you would press the time button> key in the correct time and then push the time button again. I hope this works for you. Otherwise, if you don't have your instruction manual, you may be able to download one from the manufacturers site. You will need the model # for this.

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had same problem. Son was playing with it and locked the keys. I held the stop/clear key down for a few sec and it started working

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I have the same model and it just turned off by itself and refuses to come back even with it plugged in the wattage that I have is 1000watts. I thought it was my electrical outlet not working but it works fine with other appliances....any suggestions would be of great help...thanks!

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