Question about Microwave Ovens

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I have a samsung microwave oven model: G2739N When power is on there is lights, but most of the time it shows no no reaction when pressing keypad nor sounds. Sometimes it is working just normaly and sometimes it sets up itself to grill and starts heating with nothing inside(everything is setted up by microwave time and etc.). Whats wrong with it? Can I somehow fix it?(I'm not new in electronics).

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  • Microwave Ovens Master
  • 20,020 Answers

Possible faulty control panel.

Posted on Aug 06, 2017

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

MicrowaveSvc
  • 9047 Answers

SOURCE: LG 1925 Microwave suddenly stopped cooking, other functions work fine!

What you said about the the clock leads me to suggest that you first unplug it for a few minutes then plug it back in. It may just need a good reset. If you don't have your owner's manual you can download one here: http://www.lge.com/support/manual.jsp The mention of odor concerns me. It may just be a bit of food or grease on the waveguide cover, which is a small sheet or panel on the wall or ceiling of the cooking cavity, but it may indicate the failure of a part in the high voltage section. You may have an intermittent door switch. You can see some of my other responses for info on how to get our important text file that helps you diagnose and repair door switches and gives important safety tips.

Posted on Dec 11, 2006

  • 38 Answers

SOURCE: Nothing happens when you press "Start"

PLEASE CHECK IF DOOR IS CLOSED PROPERLY THOSE HOOKS ON THE DOOR ACTIVATE SWITCHES ON THE INSIDE OF MWAVE OPEN COVER AND CHECK IF HOOKS ARE MAKING CONTACT WITH SWITCHES .COULD ALSO BE TOUCHPAD FAULT YOU WILNEED A TECH

Posted on May 09, 2007

MicrowaveSvc
  • 9047 Answers

SOURCE: combination microwave oven

What is the nature of the failure?

Can you enter cooking the time?

If so, what happens when you press Start?

Does it run (count down, lights on, turntable on ) but not heat?

Brand and model might help, too, but the basics are the same, so we're happy to help you with more information.

Posted on Nov 26, 2007

MicrowaveSvc
  • 9047 Answers

SOURCE: Sharp Covection Oven/Microwave stops after 1min on any setting

This 59-second stop failure is due to a problem in one of the damper-related components, most likely the switch, but it may also be the motor or the damper door.

The damper is a door inside that opens or closes depending on cooking mode. If the controller thinks that the door is not in the right position, it will shut down the cook cycle.

See the attached sample photo.

If you or someone you know wants to look into this, we have *critical* safety, disassembly, and troubleshooting info at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk

We even have a video on our site that shows you how to safely & easily remove the control panel assembly to send it for service.

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

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Posted on May 09, 2008

MicrowaveSvc
  • 9047 Answers

SOURCE: I have a Neff Microwave/Oven/Grill

The first thing to try is a "hard reset". Unplug it from the power line for a few minutes, plug it back in, set the clock, then try again.

Let us know if the hard reset doesn't fix it.

Posted on Jun 29, 2008

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2 Answers

I have a Samsung household microwave oven model # SMH8165ST that when plugged in will beep a few times then blink "SE". None of the buttons will work.


Try calling Samsung....
Purchased samsung SMH8165ST in Oct 2009. have had the SE code problem for a few month now. Resetting worked at first. Then the light started flasing on & off along with the beeping...would not reset. Out of frustration I called Samsung. I was told they are aware of the problem & would repair in the "epidemic warranty". Repair man just left. It took him about 15 minutes to change out the keypad. No charge!!

Aug 30, 2011 | Samsung SMH8165STE Microwave Oven

1 Answer

Microwave beeps and with each beep a 6comes up on display, and the START under the numbers flashes, but I am unable to press any buttons to clear it. Also sometimes I can open the door and press the...


You didn't mention your brand or model number, so I can only give you a general response.

It sounds like a shorting membrane keypad.

On Samsung's, they will show the error code "SE".

For detailed do it yourself info and/or an estimate, please post a new FixYa help request and include the model, or contact me here with that info.

Jul 25, 2011 | Samsung MW6351G Microwave Oven

2 Answers

I have a whirlpool microwave oven over the range. Model GH 5184xps-4 when I press start, it comes on for one second then it shows a code -F7- and stops


TOUCH PANEL & MICROCOMPUTER BOARD TEST FOR WHIRLPOOL....

The microwave oven may be provided with a self diagnostic routine that can be operated

through the touch pad keyboard. To enter the self-diagnostic routine:

1.While pressing the CANCEL keypad:
a) Open the oven door.
b) Unplug the microwave oven for 2-seconds and plug it back in.
c) Release the CANCEL keypad and close the oven door. You will see the following display.

CHART
NOTE: The humidity sensor test results will appear on the display after 8-seconds.If the tests are successful, "OK " will be displayed. If one or more of the tests fail, "ERR " will be displayed.. 2.When a keypad is pressed, a number according to the test chart will be displayed. When no keypad is pressed, a blank "O" (square) is displayed...

POWER FAILURE & FAILURE CODES
Power Failure: After a power failure, the WELCOME screen will be displayed.

F2 Keyboard Failure: Refer to the Tech Sheet and conduct a touch panel continuity test.

F3 Humidity Sensor Failure: Refer to the Tech Sheet and test the sensor.

F6 Microwave Relay Failure: Check the microwave relay.

F7 Microcomputer Board Failure: Change the microcomputer board.


Hope helps.

Apr 12, 2011 | Whirlpool Microwave Ovens

1 Answer

Microwave doesn't work


Sounds like you have a faulty control panel. I would use a meter and test the power from the control board to the magnetron and circuit board. Chances are the control panel is faulty

Jul 25, 2010 | GE Microwave Ovens

1 Answer

I want to know the price of samsung microwave's touch pad. Model no:G2739N


Repairclinic.com sells one for $60 and another one for $49. Don't know which one you need, but if you go to their site, they have pictures and you can determine the exact model you need.

Hope this helps.

Jun 30, 2010 | Microwave Ovens

1 Answer

My samsung G2739N microwave does not function. Only the lights on the panel are on when the power is ON. please help


the unit inside the microwave that heats called the "magnetron" has gone bad or the circuits that power the magnetron have failed. if its under warranty still, send it back to the manufacturer. if not you can call some repair shops and see how much it would be to service it, but its most likely going to be cheaper to purchace a new microwave since they are relatively cheap these days. there really is no way to fix yourself unfortunately, unless you are a technician. its bad that they dont make things like microwaves last longer, they use the cheapest parts possible and they dont last long, maybe a few years and they are no good. hope this helps, good luck to you

Jan 14, 2010 | Microwave Ovens

2 Answers

Keypad Problems


Sometimes a keypad may not work because the door switches are faulty. When the door switches are working correctly it will allow the keypad to operate. They tell the microwave that the door is closed and the unit is dafe to use.

Many models have 3 door switches, it's wise to get all 3 replaced at once.

Mar 27, 2009 | Samsung Microwave Ovens

1 Answer

Our samsung microwave displays shows 5E and hangs up. We can hold down the start and clear at the same time and will clear off for a second.


-SE- error means you have a shorted membrane keypad.

If and when an oven is coming on or doing anything by itself, this is very dangerous and can result in a fire.

So until it is repaired, please leave it unplugged or leave the door open when it's not in use, and please do not leave it running unattended.

It's usually more economical on a Samsung to replace the control panel assembly, which includes the frame and keypad or (depending on your model number) the entire control box assembly which includes the keypad, frame and circuit board.

Either parts swap is easy to do. About 8 screws and a few connectors.

You can find helpful exploded view diagrams and order parts by entering your full model number from the tag on the oven here.

At our Web site, we have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.

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

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Mar 02, 2009 | Samsung SMH7178STD Microwave Oven

2 Answers

Microwave oven will not work


Seems like I've answered this before, but the MR5493G is subject to a recall due to defective keypad (membrane switch) and can be seriously dangerous.

See: www.allworldauto.com/recalls/samsung_microwave_mr5493g_recalls_1420-10455-1.html

The MR1032BB is also under recall. See: www.motorbeat.com/model/samsung+microwave/mr1032bb/

If neither is covered under the recall, you should be able to order new keypads here: http://www.samsungparts.com/search/search.asp

If not, we'd be happy to help you. You'll find a link to our site in our listing here on FixYa: http://tinyurl.com/yzjozk

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

Feb 18, 2008 | Microwave Ovens

3 Answers

Flashing 88:88 display - no keypad response - no light


Hello,

I’ve read through your problem in an attempt to find a solution to my own similar issue with my microwave oven. Other solutions (like unplug appliance overnight and reconnect to power source the next morning) did not work for my appliance.

Just as I was about to call it quits and go out to purchase a new microwave; I gave it one last try. This time, instead of pressing any and every single button on the keypad, I decided to press BOTH the "Stop/Clear" AND "Start" buttons AT THE SAME TIME. . . . . Voilà! This worked for me, but sadly, it's now May-2008 and I'm pretty sure you're own microwave is long gone since your posting appears to have been quite some time ago. Well, hopefully others that stumble through these pages with similar issues may find some assistance with my approach. Oh, and btw. . .I got this idea (which worked) from remembering the instructions on how to reset my cellphone. Many thanks, ~paul

Sep 13, 2007 | Sharp R-220HW Microwave Oven

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