Microwave doesn't work after press the start button

Door latch settings are out because door slamming and abuse of unit

Could be the magnetron or the transformer. No it is not worth repai

Any bulb will work if it fits. I use 5 watt Led

testing every step and fix it. God bless you see the diagram attached

Microwave Buttons Don't Work
Touchpad and Control Panel


If the microwave buttons don't work the touchpad and control panel assembly are probably defective.
Touchpad


If the microwave buttons don't work the touchpad might be at fault. Generally speaking, if the dishwasher display is working and some of the buttons respond correctly but some don't, the problem is with the touchpad.
User Control and Display Board


If the microwave buttons don't work the user control and display board are most likely defective and will need to be replaced. If some of the buttons work and some don't, it is more likely a touch pad problem and the touch pad will need to be replaced.
Main Control Board


If the microwave buttons don't work the main control board is most likely defective and will need to be replaced. If some of the buttons work the touch pad is likely the problem. If none of the buttons work the problem may be in the main control board.

Does it have a start button?

I would strongly consider replacing the microwave oven, prices have dropped considerably. The problem you are describing is in the keypad controller board.

The problem is more than likely in the microprocessor control board, sometimes a bad relay, or poor solder points.

Many microwave CHILD LOCK features are activated / disabled by repeatedly pressing one of the function buttons or by holding it down for about 5 seconds.

Try pressing the STOP / CANCEL button 3 or 4 times in a row to see if you can the CHILD LOCK off.

If that doesn't work, also try holding down that button down for 5 seconds.

Try these same two procedures on some of the other buttons as well like the TIMER button, or the START button, or the CLOCK button.

Your best bet however would be to include the brand and model number with your question next time and then we will be able to locate the exact instructions for you.

I hope this was helpful.

Good luck and take care.

Joe.

Hello

Remove the plug from the wall outlet and wait about 10 seconds before re-inserting it. The plug must be firmly inserted to transfer electricity to the appliance.


Open your home's circuit breaker box and reset the breaker if it has tripped and is set to the "Off" position. Simply slide the breaker over to the "On" position to fix a breaker that has tripped.


Plug a different appliance into the same outlet to make sure the outlet you are using is functional. Plug the microwave into a different outlet to see if this yields different results.


Press on the microwave door to ensure it is completely closed. The microwave will not function until the door is fully shut.


Press the "Start" pad on the display panel after setting the time. Failing to press this will result in the microwave not knowing that it should start.


Press the "Stop/Reset" pad on the panel if a program different from the program you want to run has already been entered into the system.


Press the "Clock" pad three times to turn off the demo mode. The demo mode will not allow the appliance to turn on and cook as it should.

mmv5207ba/bc microwave 0 button fan on button does not work all other key pad buttons seem to work