Panasonic Microwave oven NN-SD7S immediately starts running when door is closed. Stop/Reset button does not stop. only opening door stops the it running

William Miller

• 9179 Answers
• Posted on Oct 25, 2006

SOURCE: turns on with door open

It's likely that it's only the fan and light coming on when the door is open. But even so, it's not normal, and it should be fixed. It's not a reset issue. It's likely a broken door switch mount caused by a door slam or by inferior material, or a defective door switch caused by opening the door while the oven is cooking instead of hitting the "STOP" key first. You can do a Google search for my text file "doorsw.txt" which will give safety info and help in checking the door switches. Also, the plastic pieces on which the door switches are mounted should be checked, as well as the door alignment. It's usually the upper door switch or mount that causes this, but occasioanlly it's a problem on the control circuit board. Post again if more help is needed.

William Miller

• 9179 Answers
• Posted on Nov 28, 2007

SOURCE: pansonic model nn-p295 over the range microwave oven

In most cases, this is a problem with the inverter or a bad magnetron.

Due to the lethal voltages used and produced, I do not recommend that an inexperienced person work on these.

I would recommend that you contact your nearest Panasonic-authorized servicer. You can find one here:
http://www2.panasonic.com/webapp/wcs/stores/servlet/vServiceLocator?storeId=15001

We're happy to help and we appreciate your thoughtful rating of our answer.

SOURCE: Panasonic microwave start button

You may have a sticky door switch. Try a simple "slamming" of the door, don't over do it, just a little harder than normal. This may help pop the plunger in the switch back up. The switch could have also become loose and moved out of its adjustment.
If this does not help, a technician should save you time and money with this sometimes perplexing problem.

nuwan chinthaka

• 111 Answers
• Posted on Jan 12, 2009

SOURCE: Stop working

IS IT POWER UP.
please rmoove the cover and check the fuse also.
is it work?????
nuwan

SOURCE: Door Release Button not working on Panasonic Microwave NN-T664SFT

The problem I had experienced with the Door not opening easily will be resolved by removing the micowave oven top cover with a tamper proof torx head, replacing the door switch and reinstalling the top cover.