Question about Panasonic NN-S251 Microwave Oven

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Panasonic NN-2501 Microwave Oven range hood

My son was using the microwave, he opened the door to turn the plate inside, when he shut the door and pushed the start button, the timer still counted down and the interior light goes on, but no motor runs. Could this just be a fuse or is it the motor to the microwave? The fan for the range hood still works, just the microwave part is what is not working.

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  • rdrobe02 Jun 04, 2008

    Same as Rainylake.

  • Anonymous Mar 12, 2014

    light is on inside my neff built in microwave when the door is closed and the microwave wont switch on the timer is working

  • Anonymous Mar 17, 2014

    My Frigidaire over the range microwave (model no. CFMV156DC F) will not work unless I push the door up and in. The time entered will start counting down though. As far as I can tell the red levers (for lack of better words) that the door connectors go into-the lower one is pushed in farther than the top. As I've not explained very well I've posted a pic. Thanks so much!

  • Anonymous Mar 30, 2014

    Kenmore hood combination 721. Power button doesn't work. Light on with door closed.

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I know that this is an old post but a really common problem. The secondary interlock switch is bad. This problem is caused by only one thing : Opening the door while the unit is in cook mode. This action burns up the contacts in that switch. This bad habit causes about 60% of all microwave oven 'deaths'. The switch sticks closed and the monitor switch blows the monitor fuse, to prevent the possibility of the unit cooking while the door is open. Push the stop button before opening the door and your microwave oven will 'live' three times longer. At least from this condition....

Posted on Sep 20, 2013

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It is possible that the magnatron is bad but hard to say on a no heat problem without checking all components. A lot of model give 5-7 yr warranty on that part.

Posted on Oct 05, 2007

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Posted on Jan 02, 2017

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I have a panasonic nn 2501, .You can set the time, hit start, the time will run , but the microwave does not run. What is up? Door safety switch? Thanks, VIC


you are setting the time on the microwave clock , your press the wrong button ,you can try just putting in the number of mins and press start, or theres cook then time and start. if helpful plz rate..

Jan 19, 2011 | Panasonic NN-S251 Microwave Oven

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Our Panasonic NN-S763BF microwave turns on (light goes on, table turns and fan goes on) automatically when we open the door even though the clock is displayed. It works normally when the door is shut....


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A potential hazard if not fixed immediately!

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Microwaved buzzed then fan came on


At that age, a magnetron failure would not surprise me, but I looking at the service manual, the only way the hood fan could be on is if its relay on the control board is on.

I would bet you have a problem on the control board.

I can help with that, but please feel free to contact me directly through our site link via our Fixya link at http://tinyurl.com/yzjozk

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This is usually caused by either a bad door switch, a loose door switch mount, or a problem on the control panel.

Even though a door switch clicks, it may still be bad inside.

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Range light and oven vent fan


This usually indicates damage to the circuit board of the control unit assembly. We repair these control units nationwide for only $32.50 postpaid. If you decide first to remove or replace the bulbs or check the sockets or wiring, please unplug the microwave first. Failure to do that is usually how the boards get damaged. If you or a friend decide to work on it, we have *critical* safety and disassembly info at our site, which is linked at our listing here on FixYa: http://tinyurl.com/yzjozk You can usually find helpful exploded view diagrams and order parts by entering your base model number (without the suffix) here: http://tinyurl.com/gv383 BUT - I don't recognize NN-2501 as a valid model number. Could you confirm that? Thanks!

Feb 18, 2007 | Panasonic NN-S251 Microwave Oven

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