Panasonic 1200 W, model NN-T991SF, run for 4-5 seconds and stops regardless of the function used (defrost, heat, sensor, etc.) and sounds wierd. Thank you if you can help. HR

William Miller

• 9179 Answers
• Posted on Nov 18, 2007

SOURCE: Panasonic NN-H664 1200 Watts Microwave

Manufacturers used to include access panels in the rear or side so you could easily change the bulb. That exposed the customer to 110V connectors, and that posed a real liability threat, so they stopped using them.

You now must generally remove the outer cover to replace the bulb.

In many over-the-range models, that can mean having to take the oven down from the wall! For safety's sake, that should be a two-person job.

It's really helpful if you have your original installation instructions to do this.

Many models use one halogen lamp to illuminate the cooktop and another to illuminate the cavity. You must not touch them with your bare skin as the oils will shorten the bulb life.

To order Panasonic parts see http://www.pasc.panasonic.com/epartr ; To download a Panasonic manual see
http://service.us.panasonic.com/operman ; to find an authorized Panasonic servicer, see
http://www.pasc.panasonic.com/WhereTo/FindServicer.asp?Pass=1 ; For FAQs, see http://service.us.panasonic.com/faq/faq.aspx

We appreciate your thoughtful rating of our answer.

SOURCE: panasonic microwave does not heat , but the rest seem's to work?

High voltage parts are suspect. Need to put a voltmeter on the input (primary) side to the high-voltage transformer (big heavy iron thing in there) Should be getting 120Vac when it goes to cook cycle. Don't touch the other (high voltage) side of this transformer. If the power is there, you are looking at replacing either the magnatron or the high-voltage capacitor and diode. Its affordable if you do it yourself - buy the part on EBAY - lookup "universal magnatron"
Hope ya fix it!

SOURCE: Panasonic NN-H264 1200...stops after 3 seconds

I found sufficient information elsewhere.

William Miller

• 9179 Answers
• Posted on Jan 11, 2010

SOURCE: How do I remove the sensor inverter on the Panasonic NN-S96OWA ?

That's a misnomer.

And oven may have an inverter and it may have a sensor (usually either a heat sensor or humidity sensor).

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SOURCE: panasonic NN-CD997S microwave

i have microwave problems power trip when switch on the unit. please help me.