Question about Panasonic Microwave Ovens
Posted by Anonymous on
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Posted on Jan 02, 2017
sounds to me like the magnatron has shorted out. i don't know of a way to test them unless you have some high dollar equipment. a continuity test prob wont tell you anything. what reading did you get on the cap when you tested it?
Posted on Jan 06, 2008
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.
Posted on Jul 19, 2008
hi i have the panasonic combi and on the microwave it will work for a few seconds and then stop and on the screen it shows h98 please help
Posted on Sep 13, 2008
If it went dead almost
immediately after pressing the Start pad, that's usually a shorted
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:
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.
Posted on Dec 26, 2008
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A microwave can be dead for many reasons.
If it goes dead for a while during or after cooking then comes back on, the magnetron is probably overheating and causing the thermostat to open. When it cools, it closes the circuit and allows power through again.
If it's random, it may be a bad connection, usually on the control board or fuse holder.
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.
If the fuse is good, it may be an open thermostat or thermal cutout on or near the magnetron or on top of the cavity / body of the oven.
At our site, we have critical safety information, info on door switch diagnosis and replacement, and disassembly information.
See our listing here on FixYa: http://tinyurl.com/yzjozk
Oct 20, 2007 | Panasonic NN-S251 Microwave Oven
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