I can't get the light out under the microwave that has burned out. what do I do, and what bulb is the replacement

This is pretty common and can be a pain. It's tacked in place with contact cement or hot glue, and sometimes there may have been enough moisture to corrode and seize up.

You could heat it up (hair dryer, maybe?) then use needle nose pliers. Be careful if heating so you don't burn anything.

You may be able to put the tips of needle nose pliers inside the broken bulb's socket, gently but firmly force the pliers jaws apart and then rotate the pliers to loosen it.

Another cool trick is to put a big glob of hot glue on the end of a stick or dowel, then shove it into the broken base and let it cool about 5 minutes, then turn the stick.

I like to put a little WD-40 or rust buster on the threads of the new bulb, too. Grease, Vaseline, cooking oil, or anything like that will work. Just a thin coat.

You can download GE owner's manuals and installation instructions here.

It will have the part number of your bulb.

You can also find helpful exploded view diagrams and order parts by entering your full model number here.

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