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Home | Panasonic | NN-H504WF 1200 Watts Microwave Oven | Sarts and stops its...
Panasonic NN-H504WF 1200 Watts Microwave Oven
Problem for Panasonic NN-H504WF 1200 Watts Microwave Oven

Sarts and stops itself in 2-3 seconds




By smithde507 on Aug 08, 2009

" "
starts and stops in about 2-3 seconds
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Best Solution

posted on Aug 09, 2009
Very Helpful)

MicrowaveSvc
MicrowaveSvc

Rank: Guru  Panasonic Kitchen Appliances  Expert
Rating: 89%, 5354 votes
See if this describes what's happening:
  • Put in time, push start and unit runs for 2 seconds, relay clicks, unit goes off. Cook time on display goes off and clock time comes back. Bad upper interlock switch and charred connector
If so, see http://www.microwavedisplay.com/safety.txt , http://www.microwavedisplay.com/disassembly.txt and http://www.microwavedisplay.com/doorsw.txt

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.

It 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.

If yours is not a Panasonic, please reply back with your brand and model number so we can help you.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.
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