What is the watage of my magic chef microwave Model MC-1004B?

That would be a failed keypad, but the part is no longer available.

- Ed Miller
http://www.microwavecontrol.com

There is a line fuse, whether this is the problem? here is a link that has parts Search by model number for parts break down.
Magic Chef Microwave Not Heating

1. Unplug the Magic Chef microwave from the wall outlet.
2. Remove the screw from the light cover located on the left side of the underside of the microwave. ...
3. Unscrew the light bulb, then screw in the new light bulb.
4. Raise the light cover, then secure the cover with the screw that was originally removed.

More items...

How to Replace a Magic Chef Microwave Light Bulb ' Hunker

https://www.hunker.com/13407988/how-to-replace-a-magic-chef-microwave-light-bulb How do change the light bulb in magic chef microwave Google Search

Model number doesn't seem to match anything.
Magic Chef Cooking MC Appliance

Most lamps are replaced from a door on the side of the oven

Magic Chef microwave is runnning but won heat

My Magic chef Microwave also starts by itself the the keyboard locks up.
We have had this unit for 4 years with no problems. I called Magic Chef and they are sending me a new brain for the unit and then someone will come to my home and repair it. NO CHARGE! I am very pleased that they are backing their product like this. God Belss America

To obtain warranty service on your Magic Chef or E-Wave product within the initial one year warranty period please complete the form here.

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Had a look at magic chefs support and couldnt find your model number

Heres the webpage go there and see if maybe you have the correct model number

http://shared.whirlpoolcorp.com/product_literature/literatureSearch.cmd?form_state=literatureSearch&context=&siteCd=MCF&searchTerm=DM15H-14B

Hope that helps