Blower on top works but fan dosen't for panasonic NNSD291S

William Miller

• 9179 Answers
• Posted on Feb 19, 2007

SOURCE: 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!

SOURCE: PANASONIC DIAMENSION 4 NN-A883WBB PQ MICROWAVE

We dumped it at the local tip

William Miller

• 9179 Answers
• Posted on Dec 26, 2008

SOURCE: Panasonic nn-p295 blows buss fuse when turned on for cooking

If it went dead almost immediately after pressing the Start pad, that's usually a shorted high-voltage capacitor.

If it went dead a few seconds after pressing the Start pad, that's usually a failing high-voltage transformer. But this is likely an inverter model, so it wouldn't have one and would be some other component in the inverter I'd say.

If it goes dead or blows the breaker (or GFI) when you plug it in or open or close the door, then there's a problem with a door switch or door switch mount.

If you or someone you know decide to look into it, we have critical safety information and disassembly information at our site, and our link is at our listing here on FixYa.

Here are some links you or someone you know can use (in order given) for test help, but read the safety warnings first:

http://www.microwavedisplay.com/safety.txt

http://www.microwavedisplay.com/disassembly.txt

http://www.microwavedisplay.com/doorsw.txt

http://www.gallawa.com/microtech/cap_test.html

http://www.gallawa.com/microtech/xformer.html

http://www.gallawa.com/microtech/mag_test.html

The best place to order Sharp parts is Tritronics. Or you can call them toll-free at 866-779-5835.

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