Also, the indented area the wheels travel for the tray has started peeling. Can I sand it and repaint that with an enamel?
SOURCE: nn t993sf
Sounds like the door switches are out of adjustment or broken.
I would take it to a shop for repair. Microwaves are almost always repaired affordably unless it is really old.
Hope ya fix it!
SOURCE: Door shut off malfunction
I have the same problem starting yesterday April 19. Have you gotten any answers.
SOURCE: T993 - Positive Lock Switch ?
This
is usually caused by either a bad door switch, a loose door switch
mount (which are pretty simple problems to fix) 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:.
You can find an authorized Panasonic servicer here. You can order Panasonic parts here.
We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.
SOURCE: Panasonic - NN-T993SF 1350 watts microwave
Sorry this is something you wont fix at home I couldent even do this one.This is a nice unit depending on the cost this one I think is worth the repair bill , Good luck DFD please rate me TK U
SOURCE: Microwave (Panasonic NN-S254BF) starts, runs 2-3
In all likelihood the mangnetron has failed, or perhaps even the Power Supply. or a fault that is shutting the system down for safety reasons You need to have it serviced by a reputable service centre/man.
Ensure you get a firm "Quote" before proceeding, and remember these days the cost of repair can equal or exceed the price of a new one.
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