Question about Panasonic NN-P794SF Microwave Oven
The turntable on our Microwave stopped working. I took it out of the bottom of the Microwave and was wondering how to bench test it.
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Posted on Jan 02, 2017
SOURCE: turntable motor
You can find a helpful exploded view here.
The best place to order parts for this brand is Tritronics. Or you can call them toll-free at 866-779-5835. Their Web site will be down until Jan. 2nd.
You remove the bottom cover, then there are two screws holding the motor in place.
Here's my generic help file:
NOTES ON REPLACING TURNTABLES & COUPLERS
Copyright 2007 by William E. Miller - MicrowaveDisplay.com
UNPLUG THE OVEN FROM THE WALL FIRST OR YOU WILL EXPOSE YOURSELF TO LETHAL VOLTAGES!
Note that I am not encouraging you to work on electrical items if you are not qualified, and I assume no liability for any consequences of your decision to do so.
When replacing the turntable coupler on most models, it is necessary to loosen or remove the screws that mount the turntable motor to the bottom of the chassis.
It is usually easier to do this with the microwave oven on its right (heaviest) side because you will need two hands for alignment.
Be sure to put a towel or similar cushion on the work surface to avoid scratching the oven wrapper (oven cover) or the work surface.
It is not necessary to remove the wrapper or the wires from the turntable motor itself, but you may need to remove a small metal duct covering the turntable motor if your oven has one.
It should only be held on by one or two screws.
Although a broken coupler may come out easily or even fall out, the new coupler will not go in without at least loosening the turntable motor.
Look at the hole in the new coupler. You'll notice it has (most do have) a flat side to it. That flat side will line up with the flat side on the motor shaft.
When the old coupler is out and the motor is loose, you can ease the new coupler in the hole with one hand while turning the coupler very slightly back and forth as you gently push the motor toward it. Do not force the part in.
When the coupler has mated properly with the motor, you should feel it go in.
Be sure it's right, or you may break the new coupler or bend the mounting ears of the motor when you attempt to tighten the screws.
Reassemble in reverse order.
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Posted on Jan 01, 2009
SOURCE: Hello, I have a Panasonic
Check the door switch and once the door is shut the board must be active. If there is no clock or display then the processor board is faulty. Also if there is no action from the touch pad then it must be checked. Since the turntable works as you start the processor seems to work but the output to the magnetron is not active. So you need to check the relay to the magnetron switching, check the temperature cut off unit and the main capacitor.
All the above seems to be suspected.
Attempt with care/caution as there is high voltage present.
Posted on Aug 09, 2011
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