Question about Neff H5470 Microwave Oven

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B7740.... neff 900w microwave - no signes of power. Would like to check the internal fuse. How do I access it?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

SOURCE: russell hobs microwave oven

I am a recently retired appliance engineer of 20 years, microwaves are not normally things worked on yourself, i would be reluctant to help normally but yes there is an internal fuse ( a special quick blow type )just inside where the wire enters the cabinet on a small circuit board, if a replacement is needed it must be exact match bought from an electronic shop, microwaves are dangerous they store powerful electric and can still shock after removing the plug, if the replacement fuse blows, there is a fault elsewhere, and i do not recommend further self repair, work with safety

Posted on Sep 09, 2007

jsrock516
  • 5911 Answers

SOURCE: whirlpool microwave model # MH6150XLQ

Yes, there is. If you go to searspartsdirect.com and type in your model number, you will find the fuse listed under the "Interior Parts" heading as item number 14 (part #815174). You can find appliance fuses much cheaper at the local hardware store. Just make sure it is the correct type and rating (refer to the fuse in the appliance for the information - these are usually a 120V 20A fuse). The reason I mention this site is because they provide excellent part drawings and provide part numbers. There should also be a wiring diagram located behind the control panel to assist you in troubleshooting. Please go to my profile and use the "Ask Me" feature if you require further assistance. I hope this helps you.

Posted on Jun 16, 2008

MicrowaveSvc
  • 9047 Answers

SOURCE: Sharp Microwave Model R-1830: No power

A microwave can be dead for many reasons.

It may be the fuse, which is usually located behind the grille or on the floor of the oven behind the control panel or between the door switches.

If the fuse is good, it may be an open oven thermal cutout (TCO) on the top of the oven cavity / body or an open thermal fuse on or above the magnetron.

These should read closed (virtually zero) on a continuity check.

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 went dead or when you plugged it in or opened or closed 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.

You should do a continuity test on the fuse while it's in the holder (with the microwave unplugged, of course) then turn the fuse by hand or take it out and put it back in, then test it again.

If you remove the fuse, then press the meter leads against the ends, it can allow internal contact to be made and make a bad fuse appear to be good.

If you or someone you know decide to look into it, we have critical safety information and disassembly information at our site, and our link is at our listing here on FixYa.

You can usually find exploded views and order parts by entering your model number here at the Sears parts site but the best place to order Sharp parts is Tritronics.

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

Posted on Oct 13, 2008

MicrowaveSvc
  • 9047 Answers

SOURCE: My sharp carousel II microwave doesn't seem to

Is it dead, meaning no display, no light when you open the door and no beeps when you press a pad on the keypad?

We have the relevant service / repair manuals for this model and have uploaded it to our site here and here to help you.

They will give you safety info, step by step help in disassembly, troubleshooting tips, and part numbers.

Most computers will open these documents automatically, but you may need the free Adobe Reader

I would suspect the 20A ceramic line fuse or the magnetron temperature fuse.

You can order parts from Encompass here or you can call them toll-free at 866-779-5835.

20A ceramic fuses are available at local appliance part stores or places like Wal-Mart and Lowe's.

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

Posted on Jun 04, 2009

  • 1 Answer

SOURCE: NEFF MICROWAVE OVEN BLOWS 10A INTERNAL FUSE

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.

Posted on Jun 08, 2009

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see the informaton with carefully and use the common sense:
God bless you
When the microwave sounds okay, but there's no heat, one of the internal door switches, the high voltage circuitry, or the circuit board may have a problem.
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If your appliance has absolutely no functions at all, remove it from the mains supply, remove the case and see where the mains lead goes in to the appliance and follow the cable until you find the main fuse.
ONLY USE THE SAME TYPE AND RATING OF FUSE TO REPLACE IT.
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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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