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Microwave time stops before time is complete.

My panasonic microwave stops when timer to cook is set, the oven shut off after running only a short time. Never completing time entered.

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5 Suggested Answers

MicrowaveSvc
  • 9011 Answers

SOURCE: Microwave runs for 3 seconds and shuts off

This is an inverter-driven model, and this is one way the inverter fails. Often it will tick, too, but the cooling fan may be too loud to hear ticking. If you haven't had smoke, then it may not yet catastrophic. I would bet that a thorough resoldering would take care of it. A good technician can troubleshoot and repair this, as needed, but often they will just replace the inverter. Sometimes that's actually cheaper. Troubleshooting an inverter is way too much for someone without good solid technical experience. I would call a shop and ask for an estimate to replace the inverter. Good luck.

Posted on Oct 14, 2006

MicrowaveSvc
  • 9011 Answers

SOURCE: Help, my Panasonic NNA724M Combination

This is an inverter model, and when they stop after 20 seconds, it usually means a problem in the high voltage section, either the inverter or the magnetron.

If you don't have experience troubleshooting high voltage inverters, I recommend calling a pro.

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

Posted on Apr 02, 2008

MicrowaveSvc
  • 9011 Answers

SOURCE: Microwave Oven Panasonic NN-5560A

Chances are your Start key on your keypad has failed.

If you might want to replace it yourself, I have uploaded a handy guide with pictures showing you what's typically involved. It's at
http://www.microwavedisplay.com/keypad_replacement.pdf

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

It is part # A64795790AP "MEMBRANE SWITCH", it runs $46.88 and you can find it here:

If you would like to have us do this for you, we do that for $39.95 plus part costs.

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

Posted on Jun 08, 2008

  • 1 Answer

SOURCE: Panasonic NN-CS596S Convection Combi Steam Oven

hi i have the panasonic combi and on the microwave it will work for a few seconds and then stop and on the screen it shows h98 please help

Posted on Sep 13, 2008

MicrowaveSvc
  • 9011 Answers

SOURCE: Microwave oven shuts off after one minute

This is 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 senses that the door is not in the right position, it will shut down the cook cycle.

Sharp models stop after 59 seconds.

See the attached sample photo for a typical damper assembly.

What is your model number? We may be able to point you to the full service manual too.

If a switch is all you need, we offer a universal type for only $5 postpaid which you can order here.

The best place to order parts for this brand is Tritronics. Or you can call them toll-free at 866-779-5835. Their Web site re-opens tomorrow.

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

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Posted on Jan 01, 2009

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Microwave stops after 59 seconds


Check that a "favourite" setting has not been selected. The unit may think that is the time that you want to cook. Im not sure about your model but see if there is any clear or cancel buttons to clear any pre programmed selections. If not, unplug the machine for 15 minutes to reset the controller and try it again.

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Multiply 14.3 X 38.75= 554.125. The power output is 554 watts IEC. If the recipe is set for a 1200 watt unit, and your is almost 600 watts, obviously, you would double the cook time. Since this is rough, you need to experiment a bit. If the cook time is 10 minutes, check your product at 8 minutes. Be sure to push the stop button before you open the door when it is in cook mode. This will save wear and tear on door switches and leave the remaining cook time on the timer. Let me know how this works out for you..

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

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See if this describes what's happening:
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If so, see http://www.microwavedisplay.com/safety.txt , http://www.microwavedisplay.com/disassembly.txt and http://www.microwavedisplay.com/doorsw.txt

Otherwise, 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.

That may be a loose connection in the wiring between the inverter, magnetron, and/or control board, or maybe one of those components has failed.


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

You can find an authorized Panasonic servicer here.

In Canada, 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.

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This is 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 senses that the door is not in the right position, it will shut down the cook cycle.

Sharp models stop after 59 seconds.

See the attached sample photo.

We have the service manual and have uploaded it to our site:
http://www.microwavedisplay.com/r1870_r1871_sm.pdf

You can order Sharp parts from Tritronics at http://www.wehaveparts.com

529d312.jpg

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