Question about Panasonic NN-T664SF Microwave Oven

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Panasonic Inverter microwave 1300W NN-T664SF only about 3 yrs old. For a couple of days it was turning off after a few seconds. Then it just went black. Someone else said it might be a defective fuse?

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6 Suggested Answers

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Posted on Jan 02, 2017

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  • 579 Answers

SOURCE: Panasonic Microwave Warm

Replace the h.v. capacitor (the silver can mounted in back under the magnatron) and the h.v. diode and it will be fine.
Hope Ya Fix It!

Posted on Jan 30, 2008

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ukvacfan
  • 328 Answers

SOURCE: Panasonic Inverter NN-V673S microwave- shuts off after 2-30 secs

If the screen is showing a fault number or a number you havent seen before then its probably a program fault which can't be fixed. Check that the vent holes on the back of the oven aren't dirty and ensure that the whole oven is clean inside. Sadly it sounds like a program fault which cant usually be fixed by the owner though.
Finding a Panasonic oven repairer in the UK shouldnt be a problem though. My parents had a simlar problem wth their Panasonic Inverter oven, called the UK customer services and Panasonic contacted an authorised repairer in Scotland to visit them. Call customer services on 0844 844 3868.
If the call out charge exceeds £80 then you're probably better off buying a new oven. 



Posted on Apr 19, 2008

MicrowaveSvc
  • 9085 Answers

SOURCE: Panasonic microwave NN-S541BF stops after

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.

In most cases, this is a problem with the controller, inverter or 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.

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

Posted on Jul 20, 2008

MicrowaveSvc
  • 9085 Answers

SOURCE: operates for 3 seconds on microwave then stops

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 could possibly be as simple as a loose connection in that area. The repair shop your friend used may not have been Panasonic-authorized.

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.

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

Posted on Sep 16, 2008

cactus bob
  • 267 Answers

SOURCE: microwave cut off

the main control board is "seeingf" a high amprage draw from the inverter board . you have a problem with the inverter or the magntron . parts are more than a new unit . try to stay away from the inverter type , there just not ready for prime time . google "panasonic inverter reviews " and you will see just common your problem is good luck

Posted on Jan 17, 2009

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1 Answer

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If it stops at 16 seconds and is a sensor model, it probably has a defective humidity sensor.

If it stops after 22 seconds, that means the controller has detected a problem, usually a problem with the inverter, controller, magnetron, or a bad connection from one or the other.

You can find an authorized Panasonic servicer here.

In Canada, you can find an authorized Panasonic servicer here.

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

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To UNLOCK it, press Stop/Clear 3 times.
To LOCK it, press Start 3 times.

You can download your owner's manual here:
http://techdocs.panasonic.co.uk/GetDoc.aspx?did=125787&fmt=pdf&lang=en&src=3

We're happy to help and we appreciate your thoughtful rating of our answer.

Feb 24, 2008 | Microwave Ovens

1 Answer

What cause the wattage difference?


Wattage is based upon voltage & current. I would think that on the 1300W unit, either the voltage or the current is higher than that which is used on the 1200W unit.

Perhaps the magnetron in the 1300W unit is being driven harder. Are the fans the same size?, The magnetron in the 1300W could be running harder and they have a larger fan in it.

In any event, if the part numbers are the same, you should have no trouble using one units parts to fix the other.

Good luck!

- Jim

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1 Answer

Panasonic Microwave Warm


Replace the h.v. capacitor (the silver can mounted in back under the magnatron) and the h.v. diode and it will be fine.
Hope Ya Fix It!

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