Either the wrong bulbs or just bad ones. The oven only gives it the 120 volts. It won't be the microwave oven. Just bad bulbs
SOURCE: how to change light bulb under microwave
You can usually find helpful exploded view diagrams and order parts by entering your full model number here: http://tinyurl.com/gv383
The first step is to unplug the oven before changing bulbs!
I have a diagram at my site which helps you find & replace many GE cooktop and cavity light bulbs. It's at http://207.234.249.73/mwd/ge_lamp_replacement.jpg
We're happy to help and we appreciate your thoughtful rating of our answer.
William E. Miller, AS-EET
http://www.microwavedisplay.com
SOURCE: Replacement light bulb for GE spacemaker microwave
That model number doesn't look quite right, but nevertheless:
If
there's no obvious removable cover over the bulb (and the owner's
manual doesn't address it) some disassembly may be required.
Always unplug a microwave before removing or installing any bulbs.
If
it's an over the range type, remove the vent grille across the top and
see if bulbs can be accessed there. There may be a panel on the bottom
covering the light(s), instead.
If not, chances are
you'll have to remove it from the wall, then remove the outer cover. If
so, the installation instructions are very handy, and it's best to have two people since the microwave can be heavy and awkward.
Once it's out of the wall, the outer cover (wrapper) will need to be removed, just as you'll need to do on a counter top model.
On a counter top model, be sure it's unplugged, but otherwise ignore the instructions above this paragraph.
The
screws you need to remove should be pretty obvious, but a special
driver (such as a T20H Torx type or GTXH20-100) may be needed.
Be sure to put all the screws back in the right holes, since some may be special grounding screws.
Bulbs can be had in most grocery stores, hardware stores, home improvement centers, and big box or department stores.
Many models use halogen lamps. You must not touch the new one with your bare skin, as the oils will shorten the bulb life.
We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.
SOURCE: 40 watt night light bulbs constantly burn out short out.
Is they are left on all the time, this can reduce their life, and they are more susceptible to vibration.
Have you checked at home center or home improvement centers like Lowe's, Builder's Square or Home Depot?
You can order quality parts such as lamps by entering your full
model number or part number WB36X10003 here.
Always be sure the microwave is unplugged or the breaker is off when installing or removing bulbs, and be sure the bulbs and and your hands are clean when installing them.
We're
happy to help you with free advice and we'd appreciate your thoughtful
rating of our answer.
SOURCE: Light bult in a Microwave oven is burned out.
There should be a panel covering the bulb iside the cookspace with a screw holding it on. Remove screw, cover then bulb.
SOURCE: One surface light bulb on GE Profile microwave keeps burning out
I have the same problem. The left one burns out within a couple of hours use, the other one lasts a couple of months and is then gone. This pattern has repeated over 8 years. I replace them every now and then and then just go without until I get the urge again to fix it. Maybe smaller lower wattage lamps are worth trying...
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