Question about Panasonic NN-SN657SMicrowave Oven
Posted by Anonymous on
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Posted on Jan 02, 2017
Sounds like the magnetron has failed. This is the component that produces the microwaves that heats the food.
The cost of the magnetron is about 95% of the cost of a microwave oven. Most people don't, for this reason, replace the magnetron, they replace the whole oven which is probably what you will end up doing.
There is a possibility that the circuit that provides power to the magnetron is faulty and you need to take it apart, find the proper electrical leads and test them with a volt meter. To do this you have to remove it from its mounting and take it apart. It is a fairly lengthy process however.
Posted on May 26, 2009
SOURCE: Panasonic Genius Sensor 1300W
See if this describes
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.
That 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.
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Posted on Aug 30, 2009
SOURCE: shuts off after 15 seconds
sounds as if the magnetron has gone bad.this part of the machine is still under a warranty,and you need to call for a service technician to look at it.
do not use the unit until you get someone to look at it and or replace it.
Posted on Jan 31, 2010
press the function key,select option #5, select option#2. This should take it out of child lock. If this doesn't work enclose your model number and I will try to look up the manual
Or, press "Cancel" three times to clear the (child) lock.
You set the lock by pressing "Start" three times.
Posted on Apr 01, 2010
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