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Microwave runs for 3 seconds and shuts off - Microwave Ovens

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Keep pressure on the door and see if will continue to run if so you might have a weak spring in the door latch this would allow the door to pull back slightly and not activate the door switches.

Posted on Apr 07, 2015

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GE spacemaker microwave turns off during cooking and display goes black


Step 1:


Door Switch




If the microwave runs for a few seconds and then shuts off, a door switch might have failed intermittently. Check each of the door switches for any signs of overheating, arcing, or burning. Also check each of them for continuity. Replace any of the switches that is visibly damaged or that only has continuity intermittently


mwswitchtest2.jpg

Step 2:

Main Control Board




If the microwave runs for a few seconds and stops there may be a short circuit in the main control board. Check other components first, these boards are often misdiagnosed.


Touchpad and Control Panel




If the microwave runs for a few seconds and stops the touchpad and control panel might be defective. There are several other components that can cause this problem, be sure to check any other components before replacing this board.

Touchpad




If the microwave runs for a few seconds and stops the touchpad might be at fault. This is not common. Generally speaking, if the microwave display is working and some of the buttons respond correctly but some don't, the problem is with the touchpad.

High Voltage Transformer




If the microwave runs for a few seconds and stops the high voltage transformer might have an intermittent short. This is not common. Check other components related to the microwave symptom first.

Thermostat




If the microwave runs for a few seconds and stops the thermostat might be defective. Watch our video on testing thermostat

Step 3:

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Step 4:

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Step 5:

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Step 6:

use the DVOM tester and fix it. God bless you

Feb 08, 2013 | Microwave Ovens

1 Answer

GE Microwave will only run about 3 seconds, then shuts off. I've unplugged, let it sit and tried again. Same thing. Help!


I have a workaround for you, that works for other brands. I am not sure if it will work in your case though. Pls try it:
- It seems that the door closing sensor is not working well, so it might think that the door opened.
- Once you have this problem, open the door and then close it again.

Normally it should work...

Nov 21, 2012 | GE Microwave Ovens

1 Answer

Panosonic microwave shuts off after 3 seconds


That is an error saying you have a bad HV Inverter.

Apr 27, 2012 | Microwave Ovens

1 Answer

MICROWAVE WILL RUN FOR LESS THAN 10 SECONDS AND THEN DOES A COMPLETE SHUT DOWN REQUIRING ME TO REST TIME AND DATE TO TRY AGAIN


I would say that when the microwave is switched on to cook, the magnetron heaters take about 3 seconds to get the magnetron to draw current and that would coinside with a poor connection in the mains power plug or fuse holder in the machine.
Seems logical to me.

Jan 01, 2011 | GE JVM1650 1000 Watts Microwave Oven

1 Answer

My NN-T994SFR Panasonic Microwave shuts off after 1 second.


My unit shuts off after about 2 seconds. It seems like it tries to go, but it sounds like it stops working and then 1 or 2 more seconds run off and it shuts down. Then you hit start again and it lights up inside and then shuts down. It's only about 2 or 3 years old.Any solutions?

Mar 05, 2010 | Panasonic Microwave Ovens

1 Answer

Microwave shuts down after 3 seconds


you need a new magnetron and inverter board, this is an expensive repair, unit can be replaced with panasonic parts or replaced with same size panasonic unit

Jul 17, 2009 | Thermador MBBS Microwave Oven

1 Answer

MICROWAVE SHUTS OFF WITHIN 3 SECONDS


you would need to open it and change the fuse if that don't work call the company for a hand book that should help.

Nov 16, 2008 | Goldstar MV-1501 Microwave Oven

1 Answer

Shuts off but everything else works


If the digital programmer circuit / controller does not get a feedback signal from the inverter for a period of 3 seconds, the controller will stop the cook cycle.

If it stops after 22 seconds, that means the controller has detected a problem, usually a problem with the inverter or a bad magnetron.

Due to the lethal voltages used and produced, I do not recommend that an inexperienced person work on these.

You can find an authorized Panasonic servicer here.

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

Nov 08, 2008 | Panasonic NN-S542 Microwave Oven

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