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NATIONAL NE-8180 Microwave: The timer is set and we push start, One second later it went dead almoust immediatley after pressing the start pad and show FFFFF on the display

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: the microwave starts, then stops 2 seconds later

I tried a solution posted on another posting http://www.fixya.com/support/t242480-stops_cooking by placing the conductive plastic behind the control panel and it worked.

Posted on Jan 06, 2008

MicrowaveSvc
  • 9047 Answers

SOURCE: Microwave keeps blowing fuse

If it went dead almost immediately after pressing the Start pad, that\'s usually a shorted high-voltage capacitor.



If it went dead a few seconds after pressing the Start pad, that\'s usually a failing high-voltage transformer.



Here are some links with info on part testing:



http://www.microtechfactoryservice.com/cap_test.html
http://www.microtechfactoryservice.com/diode.html
http://www.microtechfactoryservice.com/mag_test.html
http://www.microtechfactoryservice.com/xformer.html




You can usually find helpful exploded view diagrams and order parts by
entering your full model number here: http://tinyurl.com/gv383



Please write back with your brand and model number if you need further help.



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

Posted on Jan 13, 2008

MicrowaveSvc
  • 9047 Answers

SOURCE: Humming sound, F9 and dead

Seems like I answered this, but maybe it's a different poster.

The 721 model code means it's an LG/Goldstar-made oven and F9 indicates a problem with the inverter or magnetron.

Due to the lethal voltages involved, I do not recommend that a person without training and experience ever work on these models.

I would suggest you contact Sears for service.

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

Posted on Jul 19, 2008

MicrowaveSvc
  • 9047 Answers

SOURCE: Microwave key pad stopped working

Okay, thank you for that.

You have a failed membrane keypad, but on this model, it is not available separately.

You would need to order the control panel assembly, part # WB56X10817, which you can get here for far less than GE charges.

It costs more than just a membrane would, but is much simpler to replace.

At our Web site, we have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.

Then you remove your circuit board from the old frame and install it in the new frame.

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

Posted on Jan 03, 2009

  • 1 Answer

SOURCE: Panasonic NN-H264 1200...stops after 3 seconds

I found sufficient information elsewhere.

Posted on Feb 13, 2009

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My siemens microwave oven trips off almost imediately


If it went dead almost immediately after pressing the Start pad, that's usually a shorted high-voltage capacitor.

If it went dead several seconds after pressing the Start pad, that's usually a failing high-voltage transformer.

See these links for more information:

http://www.microtechfactoryservice.com/cap_test.html
http://www.microtechfactoryservice.com/xformer.html

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If it went dead almost immediately after pressing the Start pad, that's usually a shorted high-voltage capacitor.

If it went dead several seconds after pressing the Start pad, that's usually a failing high-voltage transformer.

If it goes dead or blows the breaker (or GFI) when you plug it in or open or close the door, then there's a problem with a door switch or door switch mount.

If it's intermittent or random, it may be a bad connection, usually on the control board or a loose fuse holder, or even an intermittent fuse.

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Micowave goes on for few seconds then blows fuse. replaced magnetron tube and still does same thing


If it went dead almost immediately after pressing the Start pad, that's usually a shorted high-voltage capacitor.
If it went dead several seconds after pressing the Start pad, that's usually a failing high-voltage transformer.
See these links:
http://www.microtechfactoryservice.com/cap_test.html
http://www.microtechfactoryservice.com/xformer.html
You can find helpful exploded view diagrams and order parts by entering your full model number from the tag on the oven here.

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

Apr 05, 2013 | GE Microwave Ovens

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If it went dead almost immediately after pressing the Start pad, that's usually a shorted high-voltage capacitor.

If it went dead several seconds after pressing the Start pad, that's usually a failing high-voltage transformer.


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The first step is to set the clock. To do this, push clock, set the time using the key pad and then PUSH clock a second time.

Once that is done you can set the timer by pushing timer, putting in the number of minutes you want and pushing start.

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AHD_NZ

If it goes dead or blows the breaker when you plug it in or open or close the door, then there's a problem with a door switch or door switch mount.

If it went dead almost immediately after pressing the Start pad, that's usually a shorted high-voltage capacitor.

If it went dead a few seconds after pressing the Start pad, that's usually a failing high-voltage transformer.

Guest

If it went dead almost immediately after pressing the Start pad, that's usually a shorted high-voltage capacitor.

If it went dead a few seconds after pressing the Start pad, that's usually a failing high-voltage transformer.

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

May 28, 2008 | Microwave Ovens

1 Answer

Blown Fuse


If it went dead almost immediately after pressing the Start pad, that's usually a shorted high-voltage capacitor.

If it went dead a few seconds after pressing the Start pad, that's usually a failing high-voltage transformer.

If it goes dead or blows the breaker when you plug it in or open or close the door, then there's a problem with a door switch or door switch mount.

Apr 01, 2008 | Emerson MW8775W Microwave Oven

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If it went dead almost immediately after pressing the Start pad, that's usually a shorted high-voltage capacitor.

If it went dead a few seconds after pressing the Start pad, that's usually a failing high-voltage transformer.

If you or someone you know decide to work on it, we have *critical* safety, disassembly, and troubleshooting info at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk

You can usually find helpful exploded view diagrams and order parts by entering your full model number here: http://tinyurl.com/gv383

There should also be a "mini-manual" hidden inside the unit behind the control panel, which is very helpful when troubleshooting.

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

Mar 27, 2008 | GE Spacemaker JVM1640SJ Microwave Oven

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Microwave oven just died


If it went dead almost immediately after pressing the Start pad, that's usually a shorted high-voltage capacitor.

If it went dead a few seconds after pressing the Start pad, that's usually a failing high-voltage transformer.

Once you've looked over the safety warnings, here are some useful links:

http://www.gallawa.com/microtech/cap_test.html
http://www.gallawa.com/microtech/diode.html
http://www.gallawa.com/microtech/mag_test.html
http://www.gallawa.com/microtech/xformer.html

You can usually find helpful exploded view diagrams and order parts by entering your full model number here: http://tinyurl.com/gv383

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

Jan 04, 2008 | Microwave Ovens

1 Answer

Microwave keeps blowing fuse


If it went dead almost immediately after pressing the Start pad, that\'s usually a shorted high-voltage capacitor.



If it went dead a few seconds after pressing the Start pad, that\'s usually a failing high-voltage transformer.



Here are some links with info on part testing:



http://www.microtechfactoryservice.com/cap_test.html
http://www.microtechfactoryservice.com/diode.html
http://www.microtechfactoryservice.com/mag_test.html
http://www.microtechfactoryservice.com/xformer.html




You can usually find helpful exploded view diagrams and order parts by
entering your full model number here: http://tinyurl.com/gv383



Please write back with your brand and model number if you need further help.



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

Jan 03, 2008 | Microwave Ovens

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