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Repair guides and support for your Panasonic microwave.

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model NN-SN966S Lost all control of the keypad exept Reset

First, out of the blue, the display screen showed the Power Level counting down repeatedly (P 10, P 9...) while at the same time the speaker was sending out a continuous beep, beep, beep.

When I unplugged the device for a couple minutes, then plugged the power cable back into the socket, the display came up flashing and showed 88:88. I pressed every button on the keypad and only the Reset button worked clearing the display and showed : and again none of the keys on the keypad worked.

Anyone have any ideas? I'm thinking maybe the keypad failed or possibly the microprocessor. Is this even fixable?

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Did you find an answer. I have the exact same problem.

さんによる

I, too, have this problem. Pressing Reset causes a beep and clears the 88:88 from the display. No other buttons beep or do anything.

さんによる

Hi, I am having the same issue. Did you find a solution or just have to purchase a new microwave? Thanks!

さんによる

I m having same issue

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Same issue ...I got a new microwave and a couple weeks later plugged it back up just to see and it worked... worked for day and half then did it again.

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Hi @dustinjarrett,

If it is "new" check the warranty provisions for the oven that are usually found in the user guide that came with the oven, as to what to do to make a claim for a manufacturer's warranty repair, replacement or refund.

That's what warranties are for.

さんによる

From what I've been reading they are saying it's a faulty door switch. I'm going to check my door switch to see if that fixes the problem. This is my second microwave doing the same exact thing so might be able to fix both cheap.

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Yes, Panasonic is aware of this faulty product, and has a solution. A chat with tech support today (9-12-2023) said "Yeah, those are symptoms of an internal component failing, unfortunately. Would you like me to look for a service center?"
My microwave, and dozens of other people's (read the unhappy 1 star reviews on Amazon) echo the exact same failure sequence. And they are not happy, because if it is out of the 1 year warranty-- so it's toast. For what I paid (over $350 with tax and shipping) it should have lived longer than 2 years and 6 months!

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@flasharoo since there are no schematics for the keypads, it might be difficult to repair those. From what you are telling us, it sounds like a bad keypad. Of course, check it for any obviously failed component and post pictures. That way we might identify what may have gone wrong. iFixitでの質問に画像を追加する方法

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I believe the problem is the timer or the ability to use the buttons to set the time!

88:88 That is what is displayed in the time window, when that happens no buttons

Work except reset!!!!!

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Harry Childs さん、ありがとうございました!
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