Question about Panasonic NN-S769 Microwave Oven

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Buzzy noisy sound

Panasonic microwave, NNS-769BA, 5 year old has buzzy sound but still heating foods

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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MicrowaveSvc
  • 9085 Answers

SOURCE: microwave light door turn table works but does not heat up food

In most cases, this is a problem with the inverter or a bad magnetron.

Due to the lethal voltages used and produced, I do not recommend that an inexperienced person work on these.

I would recommend that you contact your nearest Panasonic-authorized servicer. You can find one here.

We're happy to help and we appreciate your thoughtful rating of our answer.

Posted on Jul 02, 2008

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MicrowaveSvc
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SOURCE: Panasonic NN- A712 combination Microwave 1000w - Switches off after 20 seconds

The 22 seconds is the giveaway.

In most cases, this is a problem with the inverter or a bad magnetron.

Due to the lethal voltages used and produced, I do not recommend that an inexperienced person work on these.

I would recommend that you contact your nearest Panasonic-authorized servicer.

We're happy to help you and we'd appreciate your thoughtful rating of our answer.

Posted on Jul 19, 2008

SOURCE: Panasonic Microwave about 9 years old with

In all likelihood the mangnetron is failing, or perhaps even the Power Supply is faulty. You need to have it serviced by a reputable service centre/man.
Ensure you get a firm "Quote" before proceeding, and remember these days the cost of repair can equal or exceed the price of a new one.

Posted on Jan 28, 2010

Testimonial: "Couldn't ask for more - response was prompt, helpful and clear. Thanks "

hardrocko
  • 1476 Answers

SOURCE: Panasonic 1200 watt microwave oven

Wow you must have been a TV repair tech too. Salute!! They have gotten more safisticated but some things never change. The magnetrons are real reliable. If the unit runs for 5 to 10 seconds it sounds like a control issue. The only other possible problem could be a bad HV diode. The new units have the safistication to know when the magnetron is not working and would shut down. Certainly an easy and cheap fix. You seem to have the expertise to explore this. Let me know how it works out or if you need more info. Thanks for using FixYa.

hardrocko

Posted on Feb 11, 2010

Testimonial: "THANKS FOR THE REPLY I WILL LOOK INTO THAT."

heatman101
  • 43501 Answers

SOURCE: Our Panasonic 1350 microwave no longer heats food.

Hi,
Here is a tip that will help you to figure out what is wrong with yourMicrowave Oven....

Microwave Oven Basic Troubleshooting Tips

heatman101

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Posted on Sep 30, 2010

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Hi dadedulitl,

When you say "putting out no heat", I take that to mean it's not heating the food up. When a microwave suddenly stops heating food, but still appears to run, it's usually a defective/dead magnetron. Prices for replacement/repair will vary, you will need to find out what that service costs in your locality before having enough information to decide on repair or replacement.

When my first microwave lost it's magnetron (~20 yrs ago), it was 5 years old at the time, and the cost of buying a new oven was only a little more than the repair - but I had the repair done anyhow. Since then, we've replaced the entire oven instead (twice). Newer one's may have more power/less energy wastage, etc.

If it's ~ 3 years old, do you have an extended warranty?
If so, you might be able to use that (check the terms of the EW). Most standard warranties are for 1-2 years max, so unless you bought the EW, you're probably back to deciding between repair and replacement.

If I can be of further assistance, or if you have questions about any of my response(s), please let me know before rating me.

If this solves the issue, please rate it accordingly. My goal is to earn a "FixYa" rating from everyone I help.

Thanks for using Fixya.com,

Jon

Feb 21, 2009 | Panasonic NN-P794SF Microwave Oven

1 Answer

3 year old unit, oven works, microwave does not


hi,

You may need a new magnetron, contact sharp or the store you got it from; most microwaves have a 3-5 year warranty on the magnetron. If it's not in warranty, find a good appliance repairman, this is a difficult and dangerous repair job.

Apr 03, 2008 | Microwave Ovens

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Most of the time the magnetron is defective if the food is not heating up.
In some cases there is a defective low power transformer or other componenents associated with the magnetron.
I would suggest to check the owners manual under the warranty section. Sometimes the magnetron has 5 years warranty.
Good Luck.

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