How to unlock my Simply perfect microwave - Emerson MW8168B Microwave Oven

Find the sounder on the control board and remove it or fill it with epoxy resin.

In practice, you can't.

Typically, this is an indication that the magnetron has failed. This is the most common failure in microwave ovens.

Microwave ovens emit powerful radio waves and in general for safety reason should only be used when in perfect working order. It usually costs more to repair an older microwave oven than to simply replace it.
Suggest buy a new one.

Most microwave ovens are like computers, they lock up and ocassionally need to be "re-booted", or re-powered. 1. Simply unplug the oven, then wait about 10 seconds, plug it back, and check to see if has unlocked itself. If not, continually press the clear or reset button. If that doesn't help, you'll have to get the model number and manufacturer from the label inside the microwave oven.

Hi,
Here is a tip that will help you to figure out what is wrong with yourMicrowave Oven....

Microwave Oven Basic Troubleshooting Tips

heatman101

Unless there is a fault with your microwave, simply press SETTINGS, then 5 then 2 to switch the child lock OFF. To switch it back ON press SETTINGS then 5 then 1.

Sadly your microwave has done it's last cooking. The mechanism you need to make it cook again would cost you more than a replacement microwave.

The first thing to try is a "hard reset". Unplug it from the power line for a minute, plug it back in, set the clock, then try again.

Let us know if the hard reset doesn't fix it.

And please reply back with your brand and model number so we can help you.

how do i change the bulb inside the microwave ge xl 1800 

To lock or unlock the keypad, press and hold the CLEAR pad for 5 seconds. If this recurs, you may have a power line problem or trouble with your controller. If you suspect trouble and it's under warranty, don't hesitate to contatc GE via ge.com. If you don't have your mower's manual, you can download one at: http://www.geappliances.com/service_and_support/literature/