Panasonic 28 L NN C784 MF Cov+BAke. Turns off automatically after 20 secs every time. It once displayed HOT message too. Even after 24 hours of last operation the MW turns off automatically after 20 secs...

Question edited for clarity and add maker.

Panasonic and Sharp are the brand leaders in microwave ovens. The build quality in the old ones is outstanding. I owned a large one in a commercial pub kitchen reheating hundreds of thousands of meal items for 18 years and it never went wrong once!

This is the manual for the 883 model as a PDF file

https://www.mediafire.com/file/eulp6ogpd6nc3d8

There is nothing for your model, not even on the Panasonic website.

https://www.google.com/search?q=Turbo+bake+NN-A880WBBPQ+manual

..

To set the clock, press Timer/Clock twice when the microwave is not in use. The colon between the hour and minutes should start to blink. Type the current time (12-hour clock) with the appropriate number key pads. To save the time and exit the clock set mode, press Timer/Clock once more. Note: if you take too long to begin typing the time, the microwave may exit the time set mode. In that case, the colon will stop blinking. None of the other features of the microwave will work when the colon is blinking.

This is shown on page 11 of the manual which is available on the Panasonic NN-SA651S support page: http://shop.panasonic.com/support-only/NN-SA651S.html . The direct link to the manual is currently ftp://ftp.panasonic.com/microwaveoven/om/nn-sa631_nn-sa651_nn-sa661_en_om.pdf .

I hope this helps.

Cindy Wells

To set the clock, you need to press Timer/Clock twice. Then press the 10 Min keypad several times until you get to the correct hour. Then press the 1 Min keypad as needed to get to the closest 10 minute period below the current time. Finally press the 10 Sec keypad several times to reach the current time. Then press Timer/Clock once to exit the time set feature.

Panasonic has the manual for the NN-E271WM on their downloads page: http://www.panasonic.eu/Downloads/en_GB/popup.html . Enter the model number and then click View. You will need to accept the Panasonic Terms Of Use and click View again. The direct link to the manual is currently http://tda.panasonic-europe-service.com/docs/2z5845f124z3z39cabz656ez706466z25z9709ff8b3ba329b0c218b9bf248a6442e93022b3/tsn3/data/ALL/NNE281BMBPQ/OI/912715/NN-E271WME281BME281MM.pdf . See page 21 in the manual (23 in the PDF) to see the procedure.

I hope this helps.

Cindy Wells

Hey, anything is possible! Even I have baked a cake in one. Use Panasonic's cook book, or something else from a wonderful author like Betty Crocker.

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

Before spend $$ on replacement boards, make sure anything attached to it is powered off. Unplug TV for 5mn to 15min. Plug back in and it should power on. If not leave unplugged overnight before spending on a replacement board. We have to do this 2-3 times per year when someone forgets to turn off auxiliary components (receiver, DVD, cable box, etc) first. It has always come back on.

You have a faulty interlock switch (which the door operates).
This needs to be renewed by a qualified microwave service technician ASAP.
A potential hazard if not fixed immediately!

hi sir \just i put the time 1mint after20sec tuch the sw stop but m\ovn is not cut of relay sum time but key pad all sws ok

Not sure of the TT series models but for the NN series models the procedure is as follows:-

If "Child" is displayed in the display window, then the child safety lock is on.

To remove the child safey lock, press the "Stop/Reset" button 3 times in fairly short succession (less than 3 seconds). The time of day or just the Colon sign (:) is then displayed

If you later want to apply the Child safety lock, then, when the time of day (or colon sign) is displayed, press "Start" 3 times (again in short succession).

Hope this helps

Doug

Sounds like the power inverter