Question about Microwave Ovens

1 Answer

We have the basic model microwave purchased @ Rs.4000/- and used it very sparingly, that too only for warming refrigerated (not frozen) solid foods and for cooking tomato. It never gave any unusual sound what so ever. Now the service person tells me that the Magnetron is burnt out, while all its fuses (2-3) are all intact. I can not believe that it could be possible. Now the microwave is not covered by the warranty and apparently the Magnetron apparently costs Rs.2,500/- or so. Please advise what to do in the matter.

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Microwave Ovens Master
  • 3,740 Answers

Hopefully you either have a meter or know someone with a meter. UN-PLUG the unit then remove the outer chassis by removing the 4 side screws and 6 rear screws in the chassis cover. Lift from the rear of the unit about 10 degrees and slide off the cover. Use a screw driver holding only the handle and SHORT the high voltage capacitor several times to make sure it is discharged.
Set a multi meter on resistance scale R x 10,000. Probe the HV Capacitor with the meter leads.
You should see a jump then the reading return to infinity. Reverse the test leads and check it again with the same result. No jump = bad cap.
Locate the Power diode terminal (metal wire usually) connected to the HV capacitor and disconnect it from the capacitor. Read the diode just like you did with the HV capacitor reversing the leads. The correct reading will be continuity in one direction and close to infinity in the other direction. If you get any other reading (open / infinity or shorted / ZERO in both directios) the diode is bad. Diodes are cheap...(and not unit specific in most cases) They usually are the failure cause in a microwave that has limited use.

If your Cap and Diode readings are good then it is possible for the magnetron to have failed but it is a rare failure. Failed magnetrons usually make a sudden loud humming sound.... BUT.... a bad diode will cause the same symptom... loud hum / no heat.

I sure would like to know what you find out.

Thanks for choosing FixYa.

Kelly

Posted on Nov 08, 2010

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

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

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

How do i deforst chicken breast


Put in ziplock bag. Submerge in cold water for about 1hour.

Dec 03, 2012 | Microwave Ovens

1 Answer

I have an Amana refrigerator with bottom freezer. We just moved in to the home and landlord is out of town. The freezer is cold and I can see frost blowing but nothing is freezing. The food we put in there...


Hi,

Many times a freezer and/or refrigeratordo not work right because of a dirty condenser coil...there are also many otherthings that can go wrong. If you are hearing a clicking or buzzing thencheck out the last two tips.

If your refrigerator is running but warm, then...

Check out these tips that I wrote about that... it is a great place to starttrouble shooting your unit...and something that you can do rather then callinga repair person to do a simple thing for you...

Refrigerator Condenser Coil Cleaning Refrigerator Repair

Refrigerator Troubleshooting Refrigerator Compressor

Refrigerator Compressor Start Capacitor and Start Relay
Refrigerator or Freezer not Cooling or Getting Cold

heatman101

Aug 10, 2011 | Microwave Ovens

1 Answer

Ice maker not working and freezer not cold enough, food is not frozen solid, but ice we put in tray does not melt completelyu


Hi,

Many times a freezer and/or refrigerator do not work right because of a dirty condenser coil...there are also many other things that can go wrong.


If you are hearing a clicking or buzzing then check out the last two tips.

If your refrigerator is running but warm, then...

Check out these tips that I wrote about that... it is a great place to start trouble shooting your unit...and something that you can do rather then calling a repair person to do a simple thing for you...

Refrigerator
Condenser Coil Cleaning Refrigerator Repair

Refrigerator Troubleshooting Refrigerator Compressor

Refrigerator Compressor Start Capacitor and Start Relay


Refrigerator or Freezer not Cooling or Getting Cold

heatman101

Feb 05, 2011 | Microwave Ovens

1 Answer

Daewoo koc-985t bi - Not heating food equally. ie. middle of food cold. Sometimes food takes double the time to warm.


Hi,


Here is a tip that will help you to figure out what is wrong with your Microwave Oven....

Basic
Microwave Oven Troubleshooting Tips

heatman101


'--------------------

Jan 18, 2011 | Daewoo KOC-925T Microwave Oven

1 Answer

Arcing from the metal plate on the right side of the oven when anything solid is place in it - such as frozen foods or a cold stick of oleo or frozen biscuit. Goes off when I open the door.


That metal plate is probably the waveguide cover. It is made of Mica and must be kept clean otherwise it will arc and burn. The reason it arcs more when solid/frozen food are placed in the oven is because solid/frozen foods do not absorb as much energy as wet foods.
Replace it if it is burnt.

Dec 20, 2010 | GE Microwave Ovens

1 Answer

Loud noice and humming while completing heating of food. The food was not warm. Everything else works.


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

Basic Microwave Oven TroubleshootingTips

heatman101[]\[]\][

Oct 22, 2010 | Frigidaire FMV156DC Microwave Oven

1 Answer

Our emerson microwave will not make anything hot.put in time for something to cook it runs fine but it will not make the food hot HELP!!!!! the sides and top and bottom of microwave are warm but food is...


Normal 0 MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman";} Hi,

Here is a tip that will help you to figure out what is wrong with your Microwave Oven....

Microwave Oven Basic Troubleshooting Tips

heatman101

Sep 14, 2010 | Emerson Microwave Ovens

1 Answer

Our microwave (GE) not longer heats food items.


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

Microwave Oven Basic Troubleshooting Tips

heatman101
r

Sep 27, 2009 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

Re: Overheat Microwave or...?


Magnetron (supplies microwave radiation [energy]) or any of the high voltage components internally. More than likely, the HV (high voltage) diode has burned out and is probably cheaper to purchase a new one than have someone repair it unless they can do it for free or you simply pay for the part.

Sep 29, 2008 | Panasonic NN-S540 Microwave Oven

Not finding what you are looking for?
Microwave Ovens Logo

Related Topics:

32 people viewed this question

Ask a Question

Usually answered in minutes!

Top Microwave Ovens Experts

William Miller
William Miller

Level 3 Expert

9047 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

yadayada
yadayada

Level 3 Expert

76682 Answers

Are you a Microwave Oven Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...