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Panisonic oven NN9854P PARTS


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You can order Panasonic parts here.

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Posted on Jul 13, 2008


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Posted on Jan 02, 2017


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Jan 05, 2016 | Microwave Ovens

2 Answers

Microwave still buzzing and not getting hot.I changed out the diode, HV transformer, and the magnotron. can some one help me. I already paid the ask-a-tech $30 to get this far.

The one thing you have not mentioned is the high voltage capacitor that is part of the high voltage section, this part does fail and in some cases causes a load on the supply line making the microwave buzz or blow the line fuse killing the power to the oven.

Jun 29, 2011 | Maytag MMV4205 Microwave Oven

1 Answer

I have a ge jvm 1750 dm1ww microvawe and suddenly stop working . i changed the 20 amp 250 w fuse inside the display panel and the light and the microvawe started working again.However as soon as i use the...

It's possible the high-voltage capacitor is bad, but I suspect a bad interlock monitor switch. This is one of several switches operated by the door latches, and it's wired to cause the fuse to blow if you try to operate the oven with the door open. The switch may be stuck, which can happen if the oven door gets slammed. It's also possible the switch is good but is out of adjustment.

Replacement switches are available. The Sears parts website has an exploded diagram showing where it's located (item number 30). You should let a professional make the repair, though. Microwave ovens are dangerous items to work on, and if door repairs aren't done correctly there can be excessive microwave leakage.

Mar 20, 2011 | GE Microwave Ovens

1 Answer

Panasonic nn-t775sf microwave oven not getting hot, i measured the two diodes on the inverter power supply one is open and one is shorted anyone have a service manual? or idea part number to replace them

Before you do all of that, please check the door safety interlock switches for proper operation. These switches report to the oven if the door is open or closed. Forget what you know about the door, the oven needs to be told and in the simplest of terms. If you regularly open the door with the oven operating, you have probably damaged the contacts of the tiny switches. If the contacts do not close (open) properly, they don't report the door as being closed and as such, the oven will not turn on the heat (magnetron).

If you find these switches are operating properly, I suggest you check with for your parts or with a advertiser whose message you will find around this page.

Thank you for your interest in

Mar 13, 2011 | Microwave Ovens

1 Answer

Kitchenaid Microwave Oven model Kcms1555rss stuck on same cooking time. There is a line with 3 other lines also on the screen

Hello :

It could be a bad door switch or loose door switch mount . There are plastic mounts inside the microwave which hold the door switches and onto which the door latches lock when you close the door.

The screws on these mounts may be loose. If they get too loose, the switches will not be activated properly .

Warning : A microwave oven is capable of giving you a serious electrical shock, even when it is unplugged. I strongly recommend you seek the assistance of an appliance repair technician when conducting any microwave oven repair .

good luck .

please rate !

Mar 30, 2010 | KitchenAid KHMS155LSS 1000 Watts Microwave...

1 Answer

Microwave Panasonic H98

Please check your door safety interlock switches.

When you open the door with the oven running, to check stuff, there is an arc on the tiny contacts. Eventually, they burn and are not able to tell the oven that the door is shut. Forget what you know about the door, the oven has to be sure the door is shut and it uses these little switches for that purpose.

There are other reasons for no heat, this is the most likely one. Check them with a volt/ohm meter. If failed, get replacement from Panasonic, your appliance parts distributor in your town, advertiser, Radio Shack or

Good luck with your repair.

Thanks for your interest in

Feb 23, 2010 | Panasonic NN-H504WF Microwave Oven

1 Answer

Panisonic oven NN9854P

I suspect a door switch or mount.

Usually a unit with a bad door switch or switch mount will still count down when you press Start, but will not heat.

The fan, turntable, and inside light may or not run, depending on how the unit is made.

If you or someone you know decide to look into it, we have critical safety information, info on door switch diagnosis and replacement, and disassembly information at our site, and our link is at our listing here on FixYa:

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

Jul 12, 2008 | Microwave Ovens

1 Answer

Model MW1080sta Problem: Turntable won't turn at all. Trying to change synchronus motor. What voltage should it show when I plug in power? Wanted to test before replacing it.

Most ovens that I have repaired the turntable runs from 115 volt ac. Most ovens have a schmatic on the inside, look at it and follow the motor leads back to the sorce of power and check any switches or interlocks that it may go through.
good luck

May 17, 2008 | Samsung Microwave Ovens

1 Answer

Microswitch nomenclature

These are the OEM switches in that model: SWITCH-SECONDARY part # WB24X0829 reference # 1446 (it needs 2) SWITCH-MONITOR part # WB24X0830 reference # 1447 But... You can use a generic 15A three-terminal switch in each spot as long as the proper wire is attached to each of the the "C" (common), "NO" (normally open) and "NC" (normally closed) terminals. These replacements are available from a local appliance parts store, home improvement center, or Wal-Mart, etc. As far as the door latch is concerned, reference 1205 is listed as the "body latch". I usually call it the door switch mount. The tabs on the door switch mount sometimes break. If it is removed, the door has to be realigned and a leakage test must be done. But often one can fix it with epoxy, etc. without removing it. You need to also check to be sure the hooklike devices sticking out of the door are not broken off and that they have spring tension which pulls them back down after you push up on them. Sometiems the inner door screen has a little loop to which the spring mounts, and that loop breaks off inside. 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: Also, there should be a mini-manual / tech sheet folded up inside the oven. It's very helpful. Another good source of parts lists and exploded views diagrams is (the 3 is correct). Your model is there. Another part source for this one: Good luck, be careful and be safe.

Jun 13, 2007 | GE JE1590 Convection / Microwave Oven

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