Question about Panasonic Microwave Ovens
The 22 seconds is the giveaway.
In most cases, this is a problem with the inverter or a bad magnetron.
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.
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Posted on Jul 13, 2008
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Posted on Jan 02, 2017
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Feb 06, 2015 | In Microwave Ovens
Oct 10, 2011 | Panasonic NN-H264 Microwave Oven
Aug 01, 2011 | Whirlpool MH2155XP Microwave Oven
If there is no heating please do not switch on unless you have confirmed the fault. It is possible that the Magnetron is faulty, the temperature cut off is faulty or the main capacitor is short. It is also quite possible that insect can get into the oven and create soft spots. When you switch on these will create a short and make the voltage jump and in the long run damage the magnetron.
So Remove cover after disconnecting , check for dirt/moisture in the cabin, if so wipe clean and dry, check the magnetron and area clean and use an jet air to clean off.
Make sure that the program controller is working if not check power - step down supply, the pads are responding- if not faulty pads- or the door switches, if contact is not through the microwave will not work.
Now keeping clear of the microwave, switch on, use a cup of water inside to test.
If you notice any sparks shut off as the magnetron or the main HT capacitor can be faulty. replace with same type. In this case it seems that the program controller board has errors specially if the oven heats and shuts off. remove the board, clean and reset.
If there is heating without any issues, you can use the microwave safely
May 16, 2011 | Microwave Ovens
It sounds like the magnetron may have
either failed or is not being supplied with the extremely high
voltage required to run it.
SAFETY IS PARAMOUNT
This is a job for a professional and must not be attempted by the novice.
Hope that helps.
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