Question about AEG MCC663 Microwave Oven

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AEG MCC663 Microwave

Shows "ERR3" which stops unit working. Whats ERR3?

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Re: AEG MCC663 Microwave - AEG MCC663 Microwave Oven Microwave Ovens

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Posted on Jan 15, 2008

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Microonde whirpool jt359 err3

Percio il ventola sono rotto. Avete il manuale di Micro? Guarda che cosa rotto quando avete il Err3.

Jun 11, 2014 | Microwave Ovens

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Hi, My AEG built in micro wave has stopped working I was warming plates and it just cut out leaving an / and * on the display, I switch it off for 15mins then switched it back onit flashed 12.00 twice and...

Your microwave is not intended for use as a plate warmer. The plates may not even be microwave compatible. You may have caused the internal fuse to open or smoked the magnetron. The control board may have been affected as well.

Jan 01, 2014 | AEG MCC663 Microwave Oven

1 Answer

Hi I Have a AEG KB9810E microwave/oven combo. Its 6 years old. While the microwave was in operation, the circuit tripped and my partner heard a popping sound. Now its not clear of the AEG tripped the...

Normally when no power coming on from the microwave the fuse has blown in the microwave due to a short hi voltage diode con bad located by the capacitor or micro switches located by the door clips. If you have no electrical experience do not temp to fix it yourself due to high voltage stored in the capacitor.

Oct 07, 2013 | AEG KB9810EM Compact Multifunction Oven...

1 Answer

Hello, I have an AEG microwave, 6 years old. When I turn the button to chose the cookingtime and the WATT , the display shows what I choosed so thats OK. When i then press the start button the microwave...

This can be due to wrong choice or fault in the power supply ,main board or the magnetron.
You should try with a preset selection and if the microwave works then the fault relates to correcting the power to time settings.
Check out with microwave cooking tips.

Feb 01, 2013 | AEG MC143EUX 750 Watts Microwave Oven

1 Answer

Err3 ?

"ERR 3" means that the magnetron units have failed in the microwave. Food will not cook or heat up when the microwave is in use.

The magnetron is the main source of power and heating in a microwave. Magnets work inside a magnetron tube to create the heat and voltage needed to cook items.

Prevention/Solution: Bring the microwave back to the retailer or a repair shop for service. You may also consider purchasing a whole new microwave if the prices are cheap enough.

Good luck.

Apr 22, 2011 | Whirlpool Microwave Ovens

1 Answer

How to dismantle the door?

It varies by brand and model, but normally you have to separate the door panels (as shown in the attached photo) and then you'll see the previously hidden screw(s) you need to remove.

Or you can watch a YouTube video (not a video I made) that demonstrates how it's done.

In some cases, you then have to gently rotate the handle to unlock it.

You can find links to helpful exploded view diagrams and part ordering help here. I recommend that you bookmark that link to your favorites.

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


Jan 16, 2010 | AEG MCC663 Microwave Oven

1 Answer

Grill element stopped working.

I had the same. Dismantle the oven and see at the back side the connection wires for the heat element. Mostly one of the connectors is faulty. I fixed it that way.

Jul 29, 2009 | AEG MCC663 Microwave Oven

1 Answer

Microwave not working

HI, this is a faulty control panel. replace asap if possible.

May 29, 2009 | Whirlpool Microwave Ovens

1 Answer


The first thing to try is a "hard reset". Unplug it from the power line for a few minutes, plug it back in, set the clock, then try again.

Otherwise, your best bet is to contact AEG customer service here:

I'd bet that customer service will not know the meaning of the code (if it's not in your owner's manual) and they will steer you to a service center.

The service center will probably not tell you what the code means, preferring instead to repair it for you.

Good luck.

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

May 26, 2008 | AEG MCC663 Microwave Oven

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