Can't open microwave door

I'd check the door switches to make sure they are being reliably activated when the door is closed.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/david_29ad5d1dd86564b0

busted plastic part in microwave send model # we can find the part you need

check control pannel

Panasonic FAQ:
The microwave oven model NNSA651S was manufactured in a way that the oven light turns on only while cooking. - FT



Stupid design!!

Take side panels off and press the button through from the back, my husband has just done this tonight on our Panasonic microwave model NN-ST477 as the door would not open. He found a piece of plastic like a hook had snapped off. The door now opens and functions normally. Took about 30 minutes to do . If and when it becomes stuck again we know that we will need a new replacement button. Hope this helpskind regardsChristine

Your oven light is busted or damaged. You can buy the replace at the any electronic shop. Just open the top cover then you will see the light you will going to replace

Here you can find what you need for a very similar model
http://www.searspartsdirect.com/partsdirect/part-model/Panasonic-Parts/Microwave-Parts/Model-NNSD297SR/0789/0123370/50036271/00001?blt=06&prst=0&shdMod=NN-SD297SR
Yes, to take down the face you must have the unit fully accessible - the bolts are accessible only from the rear.

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.

Hi! if the parts is to much expensive i think it is not worth it. considering the years it has serve you.

This is usually caused by either a bad door switch, a loose door switch mount, or a problem on the control panel.

Even though a door switch clicks, it may still be bad inside.

Door switches are most often damaged by opening the door while it's cooking (instead of pressing Stop / Clear first) or food
/ grease debris in the switch.

If you or a friend decide to look into it, we have critical information on safety, disassembly and door switches at our site, linked here on Fixya: http://tinyurl.com/yzjozk