Question about Sanyo Microwave Ovens

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Sanyo S15678 slightly more than one year old. Working fine but not heating.

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It sounds like the magnetron may have either failed or is not being supplied with the extremely high voltage required to run it.
Make sure the !!!!capacitor is discharged!!!!! before attempting any sort of repair.
Check the door interlock switches first then the high voltage diode with either an AVO model 8 on high resistance range for short circuit, the capacitor can fail and go short circuit, the feed fuse on the primary of the high voltage transformer and then finally, the magnetron is best checked by substitution.
Hope that helps.

Posted on Dec 29, 2010

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Posted on Jan 02, 2017

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I have an old Sanyo Microwave Model EM-FL90N which has worked great, everything works but it seems not to be heating stuff up. The manual is not of much help either. Any suggestions? Help?


Javaid,
You might want to consider replacing the microwave if it is more than 8-10 years old. Sounds like you have a magnatron that is going bad and that is what does the cooking, and to replace it could cost you almost as much as a newer microwave. Hope this helps!

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Jul 13, 2017 | General Electric Microwave Oven

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It's probably a shorted high voltage rectifier diode or magnetron.

At our site, we have a video showing how to remove a typical over the range control panel assembly in under 5 minutes.

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.gallawa.com/microtech/diode.html (if it is NOT shorted, it's probably fine)
http://www.gallawa.com/microtech/mag_test.html
http://www.gallawa.com/microtech/xformer.html

You can order Samsung parts here.

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

Oct 26, 2008 | Microwave Ovens

1 Answer

Sir, I have a 2 years old SANYO microwave with a stainless steel body. Some days ago it stops working. It is running well but does not heat up anything. I appreciate your comment and suggestion sent to my...


If it's within the magnetron portion of the warranty (usually 5-9 years) but out of the original full warranty (usually 1 year), then your manufacturer will cover the part cost, but not the cost to visit you or the labor charge to do the work.

Generally, the most common causes of a failure to heat are:

- bad door switches or door switch mounts
- loose connection at the magnetron
- problem or loose connection on the control unit circuit board
- bad magnetron or other high voltage part (such as a shorted diode)

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, linked below.

You can contact Sanyo customer service and find an authorized servicer here: http://www.sanyo.com.au

Feel free to write back if you need more help.

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

William E. "Ed" Miller, AS-EET
prototech@usa.net † http://www.MicrowaveDisplay.com
Microwave Oven Control Panel Repair Nationwide $39.95

Jun 22, 2008 | Microwave Ovens

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