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Runs 5seconds then cuts off - Panasonic Microwave Ovens

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Please post a new question, and please include your brand name and the full model number from the tag in or on the unit as well as detailed symptoms so we can help you.

Posted on Oct 10, 2009

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1 Answer

My EWave Microwave cuts off before time is done.


you have problem with a) power diode b) high voltage capacitor short, c) Magnetron defective.
you must consult to qualified tech for repair. or go to some repair shop TV for fix it.
God bless you

Jul 10, 2012 | Microwave Ovens

1 Answer

My Sharp Micro Convection Model R1870 fan behind the touch panel keeps running for 50 seconds after the microwave turns off,. this is not the vent fan. it also runs for 50 seconds when you turn the...


If the fan seems to run even after the microwave had completed the cycle, then it is possible that the drive to the fan is having a time delay. Also it has to be made sure that the magnetron has been cut OFF power or else it is not a good situation. You will have to remove the control panel and check on the board, check the drive to the fan, since the processor cuts off the fan and magnetron at the same time the fan circuit must be traced. Look to the circuit after identifying the fan wiring and back check using a multimter if you are able to trace. If not take help as this can be harmful in case the microwave works till the fan cuts off. A faulty capacitor on the board can create this time delay.

Oct 11, 2011 | Sharp R-1870 Convection/Microwave Oven

1 Answer

Mounting bolts firgidaire FMV156DC


Where I live there is a bolt shop....really. If you can, find such a shop, and take your other bolt with you and 'match 'em up'.

Another possibility is that Lowe's carries speciality bolts. They're in cabinets/drawers in the hardware section, not hanging on the wall. H/Depot probably has a similar arrangement.

Yet another possibility (and I think it's your best shot) is that, if you can match just the threads, you can buy a piece of all-thread (it's just a piece of steel rod, with the threads running the full length of the rod). Thread your nut onto the all-thread just past where you are going to make your cut, and cut with a hack saw. (You run the nut down on the rod so that, after you make your cut, you unscrew the nut over your fresh cut to straighten out the threads deformed by cutting). Total cost for all-thread and nuts......around $5. Use your existing bolt as a pattern for the new bolt, and leave evough extra to accomidate the nut that you'll add in place of the head of the old bolt. Anyone working in any hardware department anywhere on the planet worth their salt can help you.

Best regards, --W/D--

Jul 20, 2009 | Frigidaire FMV156DC Microwave Oven

1 Answer

Cuts off know heat


Many thing can do this but, common things are....loose high voltage wire.....poor solder joint on board.....magnetron.....power relay.....

Nov 13, 2008 | Panasonic NN-P794SF Microwave Oven

1 Answer

Microwave shuts off after 2-5seconds


Sadly, we hear of this over and over.

This is usually due to a defective or loose magnetron causing electrical interference and disruption in the control circuit board.

If your magnetron was recently replaced, it may have loose mounting nuts or bolts or the wire mesh RF gasket was not installed or got pinched.

It may also need a new high-voltage diode and stirrer, and the cavity may be affected.

GE had a campaign (but not a recall, mind you!) covering several models.

Details are in their bulletin at http://207.234.249.73/mwd/ge_mw_mag_kit_bulletin.pdf

Even if your model is not on the list, the same problem can occur, requiring a kit. I just think the difference is that GE has stopped paying for the repairs.

The parts kit (that GE used to pay for) is part # WB27X10489 and is shown here: http://207.234.249.73/mwd/wb27x10489_ge_mag_stir_kit.jpg

If you or a friend decide to look into it, we have critical information on safety, disassembly and door switches at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk

You can find helpful exploded view diagrams and order parts by entering your full model number here: http://tinyurl.com/gv383

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

Feb 17, 2008 | GE JVM1650SH Microwave Oven

2 Answers

Microwave cuts out after 23 secs


In most cases, this is 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.

I would recommend that you contact your nearest Panasonic-authorized servicer. You can find one here:

http://www2.panasonic.com/webapp/wcs/stores/servlet/vServiceLocator?storeId=15001

Dec 15, 2007 | Panasonic NN-S550WF Microwave Oven

1 Answer

Microwave oven


Quite often this is due to a bad door switch. Opening the door while cooking (without first hitting the STOP pad) is the primary cause of door switch failure. If you or a friend decide to work on it, we have *critical* safety, disassembly, and troubleshooting info (as well as a text file which helps in diagnosing and repairing door switch problems) at our site, which is linked at our listing here on FixYa: http://tinyurl.com/yzjozk You can find helpful exploded view diagrams and order parts by entering your model number here: http://tinyurl.com/gv383 Feel free to contact me directly if you have further questions. I appreciate your thoughtful rating of my reply.

Oct 02, 2007 | GE Spacemaker JVM1640SJ Microwave Oven

3 Answers

Microwave shuts off after 2-5seconds


The problem is most likely the magtube, it takes aprox 3 sec for the tube to energize and then it kills the microwave. If you drop the control panel away and start the microwave 90% of the time it will cook fine.

Nov 19, 2006 | Emerson MW8102SS 1100 Watts Microwave Oven

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