Question about Panasonic NN-T993SF Microwave Oven

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Model # NN-T793/T993

Our microwave is almost 4 years old and we have never had a problem until now. It will only stay on for about 40 seconds before it shuts off. We can set it on popcorn mode and it will stay on for about 40 seconds before it shuts off by itself. I am also having trouble finding a shop that will look at it. My email address is ezmefrogman@yahoo.com Thank you Ronnie

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  • Anonymous Aug 13, 2008

    where is the vent fan and how do i get to it?

  • pammt Aug 13, 2008

    I have the same problem. Where is the vent fan and how do I get to it to check it?

  • vicursitti Oct 05, 2008

    My Panasonic (same model) is 5 yrs old and shuts off after 23 seconds, no matter how much time I set for it.

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I took it in to the shop payed to have it checked out because I was told the magnetron is replaced by panasonic for up to 5 years. So I took it in and its the magnetron tube not the magnetron. So that whould cost me 139 dollars to fix a 4 year old microwave. And it came on for about 10 seconds and then shuts off like yours does.

Posted on Nov 13, 2009

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I have the 23 second problem too.

RadarRon - what are you next several guesses and how do i implement testing or repair for them

Posted on Nov 03, 2008

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My first guess would be to checvk the venealation fan

Posted on Mar 31, 2008

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