Microwave command pad not working

touch pad needs replacing not sure if can replace look online might get lucky

• Check for bad interlock switch or interlocks that are not being properly activated.

• confirm that the START touch pad button is not itself faulty.
• If it is not a touch pad unit, check the controller-it is either not sensing the start command or there maybe some other reason, like an internal blown fuse
• Check that there are no missing power supply voltages for the controller or any bad connections.

• If your a DIYer, obtain a repair and service manual for you particular model microwave; or else bring it to a qualified technician in microwave repair. You'll want an estimate for diagnostic fees, parts and labor.
• See if the technician is willing to apply the diagnostic fee toward the repair costs for price reduction.
• If the bill to repair the microwave is 50% more than what it would cost to buy a new one, deep six the old one and splurge on yourself and family for a new microwave oven...you deserve it! :)

the pads are touchy its probably been white knuckled too long

This seems to be a failure of the control panel pad or switch as it does not take the command.

The only way possible to see if the touch pads are working is to test the voltage of the control pads when it contacts. The input of the Microprocessor should be checked for the pad control impulse to come in. If there is no trigger voltage to the mP this can be the control pad problem.
The mP must be checked for the working voltage and also the frequency oscillation at the crystal leads. If so the mP is working with a suspected control pads which are not able to set the program or timing.
There is no way but to remove the sticker pad and replace, One difficult way to have a chance is to remove the carbon sticker pads and check continuity , You can use a carbon pen to line the tracks so that the multi-meter reads a continuity. With this you can have a temporary fix

Yes! the keypad will need to be replaced, but there is a possibility the keypad control board may also need to be replaced.

Hi, welcome to Fixya!

From your question, I suspect the fault is from the control board of the microwave. This is why some buttons on the the touch-pad are not working.

Have the control board replaced and the buttons that refuse to work will start working again.

I hope the above is clear. If not, please let me know.

Regards.

Possible that the pad is not working or a possible failure.

Remove cover after disconnecting , check for dirt/moisture in the cabin, if so wipe clean and dry, check the magnetron and area clean and use an jet air to clean off.
Make sure that the program controller is working if not check power - step down supply, the pads are responding- if not faulty pads- or the door switches, if contact is not through the microwave will not work.
If only the start button is inactive but you are able to set timing then then the start button pad must be worn out.

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

replace the touch pad or, key pad. it has failed.

Check the door switch is properly working. If it is ok the defect may be with the key pad.