SOURCE: Microwave runs for 3 seconds and shuts off
This is an inverter-driven model, and this is one way the inverter fails. Often it will tick, too, but the cooling fan may be too loud to hear ticking. If you haven't had smoke, then it may not yet catastrophic. I would bet that a thorough resoldering would take care of it. A good technician can troubleshoot and repair this, as needed, but often they will just replace the inverter. Sometimes that's actually cheaper. Troubleshooting an inverter is way too much for someone without good solid technical experience. I would call a shop and ask for an estimate to replace the inverter. Good luck.
SOURCE: faulty microwave oven
So it's dead? (No lights, no beeps when you press a key?)
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.
But - this model uses and inverter. 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. You can find one here:
http://www2.panasonic.com/webapp/wcs/stores/servlet/vServiceLocator?storeId=15001
But if you or a friend decide to look into it, we have critical safety information and disassembly information at our site, linked here on Fixya: http://tinyurl.com/yzjozk
SOURCE: panasonic bulb nn a753
First, get the bulb part #F612E4W00AP or equal. Next, you should find a few screws around a plate in the unit through which the light shows through. Carefully remove them and the glass lens. When replacing the bulb, be sure it is in securely.
SOURCE: I have the Panasonic "The
This is usually caused by either a bad door switch, a loose door switch mount, or occasionally a problem on the control panel.
Even though a door switch clicks, it may still be bad inside. Its continuity must be checked.
Door
switch or mount trouble can be caused by slamming the door or by
opening the door while it's cooking without hitting the Stop pad first.
There
are plastic mounts inside the microwave which hold the door switches
and onto which the door latches lock when you close the door.
The screws on these mounts may be loose. If they get too loose, the switches will not be activated properly.
Sometimes
it's a broken tab on the switch holder, allowing the switch to rotate
just out of position. This tab
can be hard to see, since it is under the bottom edge of the switch.
One test that sometimes helps is to gently lift up (and/or push down) on the door or
handle as you try to start it. If it works or tries to work, then it's
a door switch mount or door alignment issue.
If
you or someone you know decide to look into it, we have critical
information on safety, disassembly and door switches at our site, and
our link is at our listing here on FixYa:.
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.
In this case, it's probably happening because it;'s not cooking due to a switch problem.
We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.
SOURCE: my microwave says "child" and won't play anymore
Not sure of the TT series models but for the NN series models the procedure is as follows:-
If "Child" is displayed in the display window, then the child safety lock is on.
To remove the child safey lock, press the "Stop/Reset" button 3 times in fairly short succession (less than 3 seconds). The time of day or just the Colon sign (:) is then displayed
If you later want to apply the Child safety lock, then, when the time of day (or colon sign) is displayed, press "Start" 3 times (again in short succession).
Hope this helps
Doug
Replacement of the
lamp should be carried out by a qualified appliance repair service.
YOUR
SAFETY IS PARAMOUNT!
Attempt
this only if you are competent.
But here is a basic method if you are
mechanically minded and have electrical safety knowledge.
The lamp is sat in a housing and its
position is adjacent to the vent holes that it shines through.
If
you feel confident, disconnect it from the mains power, remove
anything in the cavity.
Remove the microwave cover. Purchasing a
new replacement lamp will be useful as it will give you an idea of
what it looks like. Locate the dead lamp remove the lamp and fit the
new one. Replace the covers. Plug it back in and try the lamp by
opening the door.
Hope this helps.
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