Question about Microwave Ovens

1 Answer

Panasonic NN-H503B. Now some years old. Switched it on at the plug this morning and it did the following: constant peep, peep, peep, accompanied by the display flashing 9/Beef 10/Pork, 9/Beef 10/Pork alternately. Just pressing 'Stop' does just that - everything stops but then the m/c is completely 'dead' - the display just shows a colon in the centre. If I switch off and back on at the plug , same thing happens. However, if I press any other pad the peeping stops and the display scrolls and shows 'Enter Weight' instead. Letting go of the pressed pad results in a continuation of peep, peep, 9/Beef 10/Pork etc etc. The only thing that will stop it is pressing 'Stop' which kills the m/c dead. I guess this is the programmer up the creek. Is this terminal or can it be re-set / re-booted somehow? Your advice soonest would be greatly appreciated. Thanks very much. Dave W.

Posted by on

  • Dave_Wg Dec 13, 2008

    Thanks for your help. Oddly enough I idly tried the unit again late last night in passing "as you do", for no real reason - and, as you will already have guessed, it worked just fine. So far today it has has also behaved itself. Thanks again. Dave W.

  • Dave_Wg Dec 16, 2008

    The unit is not coming on or doing anything else by itself. However, I do think that the unit does now have a hard fault because if I get it to behave and then leave it switched on (so that it does not act the fool when I do switch it on), "something" keeps tripping the RCD at the mains supply. I don't think that it is co-incidence that while the unit is switched on, "something" keeps tripping the RCD because when I switch the unit off, the RCD does not trip. Therefore, for safety's sake, the unit is going to be replaced real soon. An extra Christmas present for us, I guess. Thanks for your advice. Have a good Christmas. Dave W.

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Microwave Ovens Master
  • 8,820 Answers

It sounds like you have a shorted pad ("defrost", maybe?) on the keypad.

If you (or someone you know) might want to replace it yourself, I have uploaded a handy guide with pictures showing you what's typically involved.

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

Feel free to contact me directly (and please remind me of your model number) for more information & help.

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

William E. Miller, AS-EET
prototech@usa.net
http://www.microwavedisplay.com

Posted on Dec 13, 2008

  • William Miller
    William Miller Dec 15, 2008

    It's not unusual for them to be intermittent until they fail "hard".

    Heat / temperature may also be a factor.

    If the oven is coming on by itself 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.

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



×

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

NN-SD297S The exhast fan still works but the oven


Due to the technology used in this model, there are no user serviceable parts inside. Call a Panasonic appliance engineer.

Mar 07, 2011 | Panasonic NNSD297SR 1200 Watts Microwave...

1 Answer

Hi, I have a Panasonic Inverter microwave NN-Sn9688. It's less than a year old and when you press the START button H98 appears and it will not start. Everything else works, clock etc and reset/stop...


Hi Judith, I am Kelly

If this has a 1 year warranty it is time to make that call.

Otherwise see this link about H97 or H98 codes: http://www.applianceaid.com/micro_faultcodes.html#panasonic

There are a few things that can cause the problem, none of them cheap repairs. The Magnetron filament, Control board and Inverter are the top 3 other than a losse connection.

I tried running the Model number NN-SN9688 and it does not cross. See Panasonic link here: http://www2.panasonic.com/webapp/wcs/stores/servlet/PNAEndecaSearchCmd?N=779832097&Ne=&No=0&Nr=12001&Ns=&Ntk=SupportSearch&URL=vSupportSearch&cmTag=true&catalogId=11017&storeId=15001&cm_sp=SiteSearch-_-SupportSearch-_-SupportHome&Ntt=NN-SN9688&x=28&y=20

I did not go to Panasonic Global and try other countries. I just did a USA search.

Thanks for choosing FixYa.

Kelly

Sep 10, 2010 | Panasonic Microwave Ovens

2 Answers

Panasonic NN-P794SFR microwave unit that spins not rotating


there is a switch to turn it on or off. the turntable is replaceable

Feb 07, 2010 | Panasonic NN-P794SF Microwave Oven

1 Answer

Buttons not responding on nn-s235


My microwave nn- s235 have the same problem only stop botton waork but no child is displayed in the display

Jun 14, 2009 | Panasonic Microwave Ovens

1 Answer

Turntable wont stop turning, even when not in use


The turntable is a seperate intenty from the microwave itself, I would presume that the switch that turns off the turntable when the door is opened needs replacement.

Feb 28, 2009 | Panasonic NN-H965 Microwave Oven

2 Answers

Panasonic Model No. NN-S933BF Microwave Oven


could it be that i didn't follow the manuel because i got it second hand or is it because something is wrong with it,and i have to get it fixed.

Oct 04, 2008 | Panasonic NN-T990SA Microwave Oven

3 Answers

Panasonic NN-CS596S Convection Combi Steam Oven


The first thing I would suggest is a hard reset. Unplug the unit for a minute or so. Then plug it back in, set the clock and try again.

Let us know if the hard reset does not fix it.

If it stops at 16 seconds and is a sensor model, it probably has a defective humidity sensor.

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

If you do indeed have a problem, Since it's less than one year old, it should be fully covered under warranty. I'd suggest contacting the manufacturer to get it fixed free.

I would recommend that you contact your nearest Panasonic-authorized servicer.

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

Aug 16, 2008 | Panasonic NN-SN657S Microwave Oven

1 Answer

Panasonic NN- A712 combination Microwave 1000w - Switches off after 20 seconds


The 22 seconds is the giveaway.

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.

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

Jul 14, 2008 | Panasonic NN-S753 Microwave Oven

Not finding what you are looking for?
Microwave Ovens Logo

Related Topics:

89 people viewed this question

Ask a Question

Usually answered in minutes!

Top Microwave Ovens Experts

William Miller
William Miller

Level 3 Expert

8820 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

Devabhakthuni...
Devabhakthuni...

Level 2 Expert

224 Answers

Are you a Microwave Oven Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...