Panasonic NN-H664 My microwave work normal except it does not heat, I shut off after about 15 seconds. Can you please help me. Do you have a repair manual. Please HELP. Thanks in advance, EHP64

Your oven light is busted or damaged. You can buy the replace at the any electronic shop. Just open the top cover then you will see the light you will going to replace

I would say it has an Invertor Board fault.
There are no serviceable parts so call a Panasonic engineer for repair.

Hi,

Here is a tip that will help you to figure out what is wrong with your Microwave Oven....

Basic Microwave Oven Troubleshooting Tips

heatman101

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my microwave shuts off after a few seconds. is there a fuse that needs replacing?

In all likelihood the mangnetron has failed, or perhaps even the Power Supply. or a fault that is shutting the system down for safety reasons You need to have it serviced by a reputable service centre/man.
Ensure you get a firm "Quote" before proceeding, and remember these days the cost of repair can equal or exceed the price of a new one.

Sorry this is something you wont fix at home I couldent even do this one.This is a nice unit depending on the cost this one I think is worth the repair bill , Good luck DFD please rate me TK U

If it stops after 22 seconds, that means the controller has detected a problem, usually 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.

You can find an authorized Panasonic servicer here.

Shops generally charge about $75 for a home visit, then about $75-90 to do the repair work.

You can price Panasonic parts at Tritronics, but if you don't find what you're looking for there, try here. Shops might mark up parts from 25-100%, depending on the cost of the part.

If nothing else, you can save about $75 by taking it to the shop yourself.

I'd say it would run about $200 or so if you take it to the shop.

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

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

You can order Panasonic parts from Tritronics.

If you reconsider, 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.

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.

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.

my panasonic NN-S561 does exactly the same thing