Hit start button and all the power (including interior light) went out. app 1 yr old
If total dead look for the fuse inside and make sure the circuit it is plugged into is active(has power).
SOURCE: Panasonic NN-P294SF dead
Yes, there will be a fuse and also on or above the magnetron, there will be a thermal cutout or thermostat, and one on the top of the cavity.
But here is our long answer on a dead microwave:
A microwave can be dead for many reasons.
If the fuse is good, it may be an open thermostat or thermal cutout / thermal fuse on or near the magnetron or on top of the cavity / body of the oven.
If it goes dead for a while during or after cooking then comes back on, the magnetron is probably overheating and causing the magnetron thermostat to open. Then when it cools, it closes the circuit and allows power through again.
When checking thermostats, if it has a hood fan thermostat, that should read open, as opposed to the others, which should read closed.
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 it goes dead or blows the breaker 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 it's intermittent or random, it may be a bad connection, usually on the control board or a loose fuse holder, or even an intermittent fuse.
You should do a continuity test on the fuse while it's in the holder (with the microwave unplugged, of course) then turn the fuse by hand or take it out and put it back in, then test it again.
If you remove the fuse, then press the meter leads against the ends, it can allow internal contact to be made and make a bad fuse appear to be good.
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: http://tinyurl.com/yzjozk
Please feel free to contact me directly if you need more help.
We're happy to help and we appreciate your thoughtful rating of our answer.
William E. Miller, AS-EET
[email protected]
http://www.microwavedisplay.com
SOURCE: Panasonic microwave start button
You may have a sticky door switch. Try a simple "slamming" of the door, don't over do it, just a little harder than normal. This may help pop the plunger in the switch back up. The switch could have also become loose and moved out of its adjustment.
If this does not help, a technician should save you time and money with this sometimes perplexing problem.
SOURCE: panasonic nn-s255 wont turn on
See if this describes
what's happening:
If so, see http://www.microwavedisplay.com/safety.txt , http://www.microwavedisplay.com/disassembly.txt and http://www.microwavedisplay.com/doorsw.txt
Otherwise, if
the digital programmer circuit / controller does not get a feedback
signal from the inverter for a period of 3 seconds, the controller will
stop the cook cycle.
It may be a loose connection in the wiring between the
inverter, magnetron, and/or control board, or maybe one of
those
components has failed.
Due to the lethal
voltages used and produced in inverters, I do not recommend that an
inexperienced person work on these.
You can find an authorized Panasonic servicer here.
In Canada, you can find an authorized Panasonic servicer here.
We're
happy to help you with free advice and we'd appreciate your
thoughtful rating of our answer.
NOTE: The FixYa system is not currently notifying me when folks reply to my posts, so please contact me directly for more help.
William E. Miller
[email protected]
http://www.microwavedisplay.com
SOURCE: Door Release Button not working on Panasonic Microwave NN-T664SFT
The problem I had experienced with the Door not opening easily will be resolved by removing the micowave oven top cover with a tamper proof torx head, replacing the door switch and reinstalling the top cover.
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