On Monday, March 17, 2014 1:35:47 PM UTC-7, Robert Macy wrote:
Got a 900W microwave from Oster, purchased at Walmart.


Model OGG1E903R


The light bulb went out. Once it was out, couldn't even find where it is
mounted in there. I couldn't find any way to easily get in to look for it,
nor find any reference to what bulb to use.

Finally, reached a person actual US citizen! who said that light bulb is
not for installation by non-approved repair personnel. Further they don't
even supply it as a part. Translates to no idea what the bulb is either.
Therefore, the WHOLE unit must be returned for service just to replace the
bulb!!! What is that $20+ in shipping to send back a $60 unit or so???

Ok, people, what is this bulb? Where can I get this bulb? and what are the
steps to change it myself?

You can download YouTube videos with either KeepVid.com or with the
Firefox plug-in Download Helper.

You should be able to find the actual manufacturer through the UL file
number printed on the sticker where you got the serial number. Or
phone Oster and ask who makes their microwaves.

The bulb is usually an ordinary 25W - 40W incandescent, either screw-in
or bayonet mount, but Ebay shows some bulbs mounted (permanently?) in
a plastic base with two spade lugs sticking out. You should be able
to get one from a real hardware store, appliance parts supply,
vacuum cleaner dealer, Ebay, or order it online from places like
RepairClinic.com (also has forums). A Google image search for
"microwave oven bulb" will show the various styles.

Don't change the bulb without first unplugging the oven. You'll have
to remove the whole cover by unscrewing it (several in back, proably
1-2 along the bottom sides) and pulling it back. There's a big high
voltage capacitor inside, about the size of a pack of cigarettes
(grey thing here, marked "DANGER", but most are silver colored):

http://softsolder.files.wordpress.co...n-interior.jpg

It can retain 3,000 - 4,000 volts forever, if its bleeder resistor
breaks, and bleeder resistors often break. Stay away from it and its
wires because it can put out lethally high current at high voltage.

The lightbulb may be around there, in the top half, or it may be on
the opposite side. If it screws in, it may be held in place with a
dab of silicone rubber sealant, to resist vibration from the fans.

Do NOT plug in the AC power cord until after you have the oven cover
completely installed, including all its screws. The cover probably
has some steel fingers to help hold it in place, and it's easy to
mount them on the outside instead of inside.