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My Neff microwave combination blows the internal 10amp fuse after about 5 secs.

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  • Microwave Ovens Master
  • 14,553 Answers

Have someone look at the unit----shorted diode? Or bad inverter or MAGNETRON---10 amps means something serious is bad.

Posted on Dec 03, 2012

6 Suggested Answers

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Posted on Jan 02, 2017

fridgetech
  • 473 Answers

SOURCE: Microwave keeps blowing fuse

If it blows the fuse as soon as you hit the START button, it's almost certainly a shorted high-voltage capacitor.

If it blows a few seconds after you hit the START button, it's probably the high-voltage transformer. You'll possibly also smell a faint electrical burning smell from the rear vent after you shut if off.

If it blows the fuse as soon as it's plugged in, you probably have a shorted door switch, a shorted varistor, or an internally exposed wire shorting to the chassis, etc.

Posted on Nov 19, 2007

wiznet2000
  • 86 Answers

SOURCE: keeps blowing fuses

This problem is just like my own microwave, replace the shorted HV capacitor

Posted on Jul 27, 2009

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: glass continually shattering on combination neff oven

That's a huge gap.

You might ask their customer service people to authorize the replacement of the whole door or the glass and the inner door panel where the gap is.

If they won't help you, you could clean it thoroughly, then carefully caulk the gap with high temperature caulk.

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

Posted on Oct 09, 2009

Testimonial: "Thanks for your help. Customer Services were no help. Can you please advise which type of caulking to use."

beltronic205
  • 1456 Answers

SOURCE: SIZE OF INTERNAL FUSE

Check to see if its marked on the panel itself could be an 8 amp 1.1/4 inch size ...you must fit the correct amp fuse for safety also be careful as the Capacitor may hold a charge and can be lethal voltages within...good luck.

Posted on Apr 12, 2010

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Neff b6774N0gb/02. Inner glass shattered. replaced. Internal fuse blown. replaced. Now microwave working (heating water) for approx 5 sec, then switching off, beeping and showing E1 fault. Also display...


Usually if this model stops after approx 3 secs it is an invertor or mag fault. Check that the aerial cover is clean Page 3 of the breakdown part position 315. If this is really grubby it would be the cause of the door shattering. The PTC is not used on the microwave function so may be an additional fault. Check also the alignment of the door switches as this can also cause a similar fault. My best guess is if you remove the mag, you'll probably find scorching on it and it (and the invertor) will need replacing.

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We had the same problem, got Neff service engineer to come out after taking out insurance. He said the megatron cracks which is a large magnet and causes the fuse board to blow and needs to be replaced. This occurs through lack of ventilation on instalation. Total cost £370 may as well get a new one. Plus our insurance wouldn't pay the cost and cancelled the insurance policy.

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We have had NEFF repair man out again and he replaced the door switchs and this time it is OK.He did say if it was a problem again it will be classed as unrepairable because he thinks it is shorting out on an internal rivet on the bodywork which is inaccesable. fingers crossed it was the door switchs and it dosent blow the main fuse again .thanks for your responce. Simon.

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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.

Here are some links you or someone you know can use for test help, but read their safety warnings first:

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


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

Jul 06, 2008 | Neff H7871 Convection/Microwave Oven

1 Answer

Neff microwave combination oven


no solution sorry but we also have a Neff mw/combi oven which keeps blowing for no apparent reason, the Neff repair man has looked at it 4 times and practically replaced every component -power module, operating module,relay board, door switches but it`s just gone again! The model is a H5972N0GB/01 and it is approx 3 yrs old, no problem for the first 2 years .Time to write to Neff -is yours the same model?

Apr 23, 2008 | Microwave Ovens

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