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Microwave blows fuse and won't heat

Have answered clarification request by posting a comment. Hope that is OK
Paddij

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Normally it's best to replay back to the same thread instead of starting a new discussion, but that's okay. Here's the answer again:

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

Here is a helpful link you or someone you know can use for test help, but read their safety warnings first:
http://www.gallawa.com/microtech/cap_test.html

Info on ordering Sharp UK parts / spares is here.

The best place to order Sharp parts in the US is Tritronics.

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

Posted on Aug 18, 2008

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1 Answer

Microwave will not work


Even though you don't mention the model number, you posted under Sharp model R-1491, so I'll assume that's it.

You say when trying to work the actual microwave, you get nothing?

We could use a little clarification, but FixYa only gives you one shot at posting a help request.

When you enter the cooking time and press "Start", if the timer counts down and the oven lamp comes on, but the the turntable, cooling fan, and microwave section do not run, then you have a bad secondary interlock (bottom door switch) or its mount is bad.

We have the applicable service manuals for these models and have uploaded it to our site here and here to help you.

Also look at this info on door switch diagnosis and replacement.

Hope this helps.

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

William E. Miller, AS-EET
prototech@usa.net
http://www.microwavedisplay.com
Microwave Oven Control Panel Repair Nationwide

May 30, 2010 | Sharp R-1491 Microwave Oven

1 Answer

The microwave is one year old and functions


If it's within the one year warranty, you can get it fixed free.

You didn't mention your manufacturer, so I would have to refer you to your owner's manual for their contact information.

Please note that FixYa is not notifying us Experts when Clarification Requests are answered.

So if you need more help, please post a NEW question, and please include your brand name and the full model number from the tag in or on the unit.

Jan 30, 2010 | Whirlpool MH1170XS Microwave Oven

1 Answer

Our microwave quit heating: showed code f6


We would need to know the model number of the oven to tell you what F6 means.

But please note that FixYa is not currently notifying us Experts when Clarification Requests are answered.

So to allow us to help you effectively (at no charge), please post a
NEW problem to FixYa, and please include your brand name and the full model number from the tag in or on the unit, and your symptoms, "no heat and F6 code".


Dec 27, 2009 | Microwave Ovens

1 Answer

Microwave won't power up I unplugged it waited ten seconds or so..sill nothing I also plugged a blender in the outlet to be sure it was just the microwave and the outlet is good


Chances are you have a blown fuse or thermal cutout / thermostat.

Please note that FixYa is not currently notifying us Experts when Clarification Requests are answered.

To allow us to help you effectively (at no charge), please post a
NEW problem to FixYa, and please include your brand name and the full model number from the tag in or on the unit, and your symptoms.

Dec 11, 2009 | Electrolux Microwave Ovens

1 Answer

My microwave was working fine until one day an egg exploded in that along wit the bowl...since then it has stppoed working altogether...please help.


Chances are a fuse or the oven cavity thermal cutout has opened.

Please note that FixYa is not notifying us Experts when Clarification Requests are answered.

So if you need more help, please post a NEW question, and please include your brand name and the full model number from the tag in or on the unit.


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

William E. Miller
prototech@usa.net
http://www.microwavedisplay.com


Oct 30, 2009 | Microwave Ovens

2 Answers

Over head fan not working


Since FixYa is not currently notifying us Experts when Clarification Requests are answered, you will need to post a NEW help request.

I
n your new post, please include your brand name and the full model number from the tag in or on the unit, your symptoms, as well as the answers to these questions:

- have the cooktop lights recently failed?

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

Oct 29, 2009 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

Whirlpool Model #MH1170XSS-0 will not heat


Since FixYa is not currently notifying us Experts when Clarification Requests are answered, you will need to post a NEW help request.

I
n your new post, please include your brand name and the full model number from the tag in or on the unit and your symptoms, as well as the answer to the following questions:

- When you try to microwave are the inside light, internal cooling fan and turntable all working?

- Is there any unusual noise or is it louder or quieter than normal?

(A loud buzz, hum, or groan is usually a shorted high voltage rectifier diode, but a sound like gurgling into an empty coffee mug is one symptom of a failed magnetron, and yet the mag can be bad without that sound.)

We have a sound clip here of what a microwave should sound like when the cooling fan and high voltage section are working.


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

William E. Miller
prototech@usa.net
http://www.microwavedisplay.com

Oct 07, 2009 | Whirlpool Microwave Ovens

1 Answer

Microwave samsung not working showing e-1everyting appears to be working except that it is not heating food or anything else. just stopped and now in the display it is showing "e 1"


We would need your full model number from the tag on the unit.

Since FixYa is not currently notifying us Experts when Clarification Requests are answered, you will need to post a NEW help request.

I
n your new post, please include your brand name and the full model number from the tag in or on the unit, your symptoms, as well as the error code you mention.

Oct 07, 2009 | Samsung Microwave Ovens

1 Answer

Error code 5o or So


We would need to know your full model number, and if yours is an Amana, we also need and the manufacturing number that begins with "P".

Since FixYa is not currently notifying us Experts when Clarification Requests are answered, you will need to post a NEW help request.

I
n your new post, please include your brand name and the full model number from the tag in or on the unit, and your symptoms.

Oct 07, 2009 | Amana RC17 Microwave Oven

1 Answer

(1) Loose hinge (2) No longer heating food (3) Electrical smoke when microwave is ON


To add to my previous clarification request, the smell may be coming from the magnetron. It will overheat if the cooling fan is not running.

But again, I likely covered it in my previous Clarification Request, but if you still want help, Please reply back with your brand and model number so we can help you.

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

May 16, 2008 | Magic Chef Microwave Ovens

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