Microwave buttons not working: reasons and solutions

microwave not working but has power
Image Credits: Flickr

There is absolutely no doubt about the fact that a microwave is one of the most important appliances one has in his kitchen. The main reason behind this is its usability. We all use microwaves several times a day-to cook food, to heat dishes, heat water, make popcorns and bake cakes etc. However if anything goes wrong with it, our day to day kitchen activites and routine can suffer quite a lot. One of the common problems that may arise is problems with microwave buttons or touchpad. This is why we have come up with the main causes and solutions for anyone facing problem of microwave buttons not working.

1. Defective control panel

In most cases of microwave buttons not working, the common cause comes out to be defective control panel. If you wish to confirm whether this is the real issue, then for this you will have to press each of the buttons on the control panel. If some of the buttons are working fine while others are not then you may have to replace the touchpad and the control panel.

Our Pick

Our other recommended replacements:

  1. GE WB56X10826 Touchpad and Control Panel
  2. Samsung De94-02517c Assembly Control Panel

2. Problem with the membrane switch

Another possible cause of microwave buttons not working could be an issue with the membrane switch. The membrane switch is more commonly known as the touchpad and has a few soft touch electrical switches. There is a certain conductive coating on the touchpad which can go defective with repeated usage. To check this issue and to resolve it, you will need to unplug the appliance and remove the cabinet. Check the membrane switch using a multi meter for continuity. When pressed, it should show a few ohms of resistance. If not, you may need to get it replaced.

Our Pick

Some more Membrane Switches available online are:-

  1. Panasonic A64793310QP Membrane Switch for Panasonic NE-1258R and NE-2157R Microwave Ovens
  2. Samsung DE34-00333A Switch Membrane 
microwave touchpad
Image Credits: Flickr

3. Problem with the control board

If microwave buttons on your microwave are not working, then another possible reason behind this could be an issue with the control board. If the touchpad of your appliance does not respond but the display lights go on, then this could be the issue. The control board is responsible for generating a low voltage which is in turn supplied to the membrane switch.  In case the control board doesn’t generate a low voltage signal then you may need to replace it.  to replace the unit, you will first have to disconnect the main power supply and then remove the cabinet and the assembly.

Our Pick

Some of the Control Boards available online :-

  1. GE WB27X11158 Microwave Electronic Control Board 
  2. Frigidaire 5304472840 Microwave Main Control Board 
  3. Goodman PCBBF112S Control Board 

The above given points were the three main causes along with their solutions to the problem of microwave buttons not working.  If you are able to detect the problem correctly, you can make the replacements on your own. However it is not advised for amateurs to try replacing microwave parts on their home. They must rather reach out to professionals or technicians who are easily available these days. All you need to do is to do a little search online or ask your friends or family. For microwave buttons not working, you can contact Mr Right.

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  1. 1

    Membrane buttons have the disadvantage that they wear out after some time, although they are waterproof. Just like a converter in a satellite dish

  2. 2
  3. 3

    Hi thr..I have a LG wavedom microwave..that has a problem..when its on,u open it put ur staff in and u close the door..without even touching any..its start by its self and no buttons does soma work on the control panel..can u help pls..

  4. 4

    Respected Sir,
    I have to repair koryo microwave model number KMC 2523.
    It’s panel not working.I already changed it’s micro buttons.The display is on and 5 v,12v is ok.Micro controller ic is SF9488XZZ-Q786.What should I do.Pls help me.
    Thanking you.

  5. 5

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