Question about Panasonic NN-S933BF Microwave Oven
It seems that your unit has some sort of PSU fault, or a problem that is shutting down the Power Supply Unit, (PSU). Either this or the magnetron is failing. This "Shutdown" happens so that no further damage, and possible fire will occur.
You need to take the unit to a reputable service centre/man and ask for a firm "Quote" for the work to be done. It is that sound that gives it away, this is a typical switchmode Power Supply problem.
Posted on Feb 01, 2010
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Posted on Jan 02, 2017
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Feb 08, 2016 | Kenmore Microwave Ovens
Jan 17, 2016 | Frigidaire Microwave Ovens
Good Morning friend, thank you for your post!
I see that you are having difficulties with your Frigidaire microwave not shutting off. This could be a possible issue with your control panel or door switch. I would recommend performing a reset on your microwave and that can help clear out any potential miscommunications. To perform a reset you can flip the household circuit breaker off for roughly ten minutes. If that does not help resolve your issue you may need to seek assistance from a professional technician for proper diagnosis and repair. Hope this is helpful. -Matt
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