Question about Microwave Ovens

1 Answer

Microwave doesn't start

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
  • 9,047 Answers

This is usually due to defective door switch or door switch mount.

With your model number, we probably could have told you whether it it is the top or bottom switch.

Our help file on door switches is here.

You can find links to helpful exploded view diagrams and part ordering help here.

I recommend that you bookmark that link to your favorites.

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

Posted on Jan 10, 2013

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:

1 Answer

Timer works & oven works but microwave doesn't go on


Most often this is a bad door switch or door switch mount.
See my help file on door switches here.
You can find links to helpful exploded view diagrams and part ordering help here.

I recommend that you bookmark that link to your favorites.
We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Mar 19, 2013 | Microwave Ovens

1 Answer

WHEN I USED MICROWAVE HAD BURNING SMELL & BLACK SOOT APPEARED. STILL HAVE POWER BUT DOESN'T COOK


Just had the same problem. It was an electrical short and the repairman said that it could have burned the kitchen wall and been a catastrophy. Get rid of it immediately!

Mar 02, 2013 | Microwave Ovens

1 Answer

Sharp micro doesn't heat


see this causes and fix it. God bless you
Diode The high voltage diode converts the A/C power output of the transformer to D/C, doubling the voltage to nearly 5,000 volts. This high voltage powers the magnetron which emits the energy that cooks the food. If the diode burns out, a lower A/C voltage reaches the magnetron, which is not sufficient to power the magnetron. When the diode fails it is often visibly burned out. If it appears to be good, it can be tested with a volt-Ohm meter capable of testing diodes. High voltage diodes frequently fail and are one of the most common points of failure in a microwave oven.

Door Switch If the microwave does not heat, one of the door switches might be defective. Microwave ovens normally have three door switches, if any of them fail the microwave does not turn on and does not heat. Check the switches for continuity with an Ohm meter.

Magnetron If the microwave oven doesn't heat the magnetron tube might have burned out. The magnetron uses high voltage, high current DC power to generate the microwave frequency that cooks the food. If the microwave oven is turned on when it is empty this can cause the magnetron to burn out. Once it is burned out it has to be replaced, it's not repairable.
High Voltage Capacitor If the microwave doesn't heat the high voltage capacitor might be defective. The high voltage capacitor works with the high voltage diode to convert the output of the transformer to DC voltage and to double the output voltage. If the capacitor is burned out the entire high voltage circuit stops working properly. The high voltage capacitor can be checked with a special VOM meter which has a capacitance testing capability. Be aware that the high voltage capacitor can retain a charge of more than 3,000 volts and can injure or kill a person if not handled properly. Only trained technicians should perform this type of testing.

High Voltage Transformer If the microwave does not heat, the high voltage transformer might be burned out. Microwave ovens produce a very high voltage in order to power the magnetron antenna, which emits the energy that cooks the food.

Thermal Fuse If the microwave doesn't heat the thermal fuse may have blown. It can be tested for continuity. Watch our fuse testing video for more information.

Thermoprotector If the microwave doesn't heat the thermoprotector may have tripped. This is a safety device to prevent the microwave from overheating. It can be tested for continuity to see if it's blown.

Main Control Board If the microwave doesn't heat the main control board may be defective. This is not common. When a microwave doesn't heat the problem is usually within the high voltage circuit; either the high voltage capacitor, diode, transformer or magnetron.
10_3_2012_5_04_17_am.gif

Oct 02, 2012 | Sharp Microwave Ovens

1 Answer

Ge JES0738 LED display is fine but turntable doesn't work, microwave doesn't start. Is it a fuse issue?


No! from the description it is one of the door switches that has become defective. The solution, all the door switches need to be tested to find the bad one.

Jun 13, 2012 | GE Microwave Ovens

1 Answer

Electrical short /pop sound & now it doesn't heat. Everything else works. Any idea what went out.


The signs are not always evident, but from the description the magnetron has failed.

Apr 13, 2012 | Sharp R-1491 Microwave Oven

1 Answer

Khhc2090s trouble


The sensor errors are probably just from opening the door and interrupting the sensor cook cycle.

By the way, you should always press "Stop" before opening the door of a running microwave. Otherwise, the door switches will prematurely fail.

I would first check the door switches and their mounts. See this help file.

You can usually find helpful exploded view diagrams and order parts by entering your full model number here.

There should be a "mini-manual" (tech sheet) hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting, testing, and locating components.

12_3_2011_7_32_02_pm.jpg

You can also download manuals, installations info, and parts lists here.

dee77f7.jpgWe're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Nov 25, 2011 | KitchenAid Microwave Ovens

1 Answer

We have a sunbeam microwave. it starts but the light doesn't work and it won't heat the food. what should we do?


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

Microwave Oven Basic Troubleshooting Tips

heatman101 ;'
';

Sep 01, 2011 | Sunbeam SMW750 Microwave Oven

1 Answer

What is the wattage on the sharp microwave model r-2a48?


http://www.sharpusa.com doesn't have your manual. But you can find it yourself on the
back of the unit - the wattage should be listed.

If only the amperage is given (you know the voltage is 120 VAC RMS), so using Ohm's Law, you can calculate wattage:

Watts = 120 Volts X Amps

May 13, 2011 | Sharp R-2A48 Microwave Oven

1 Answer

How to fix an Emerson microwave 8992RD that carousel doesn't turn and doesn't heat your food..


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

Microwave Oven Basic Troubleshooting Tips

heatman101

May 08, 2011 | Emerson Black Microwave Oven

Not finding what you are looking for?
Microwave Ovens Logo

Related Topics:

15 people viewed this question

Ask a Question

Usually answered in minutes!

Top Microwave Ovens Experts

William Miller
William Miller

Level 3 Expert

9047 Answers

Devabhakthuni...
Devabhakthuni...

Level 2 Expert

225 Answers

yadayada
yadayada

Level 3 Expert

76109 Answers

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

Answer questions

Manuals & User Guides

Loading...