That humming is the Magnetron turning on and off, that is what all MW oven do, it is nothing to worry about.
SOURCE: microwave
I think You should replace the GEAR that makes it turn, or just do what 'techman' Says.
SOURCE: Microwave Will not work
This is usually a bad door swithc or loose or broken door switch mount.
If you or a friend decide to look into it, we have critical safety information, info on door switch diagnosis and replacement, and
disassembly information at our site, linked here on Fixya: http://tinyurl.com/yzjozk
You can also find helpful exploded view diagrams and order parts by entering your full model number here: http://tinyurl.com/gv383
SOURCE: GE Spacemaker JVM1631BB005 making noise
Many thanks to e3enigma above! I removed the synch motor under the turntable; all other microwave functions work fine and the grinding noise is gone, hooray! A trip to the appliance parts store tomorrow for a replacement synchronous motor and all should be well. Thanks again!
SOURCE: turntable sometimes works, mostly doesn't
It sounds like you have a jamming turntable motor.
The turntable system
consists of the motor, the coupler, the turntable support with rollers,
and the tray.
You can see and hear a video of how a turntable motor should
sound when you rotate it by hand.
If
yours won't rotate
or it sounds like it's grinding, etc., you may have a bad motor or
plastic coupler.
To
replace either, you need to unplug power, then remove the bottom cover
of the oven.
You can usually find
helpful exploded view diagrams and order parts by entering your full
model number here.
We're
happy to help you with free advice and we'd appreciate your
thoughtful rating of our answer.
SOURCE: GE XL 1800 microwave light and fan operate but no heat
With the symptoms you
have, I would most strongly suspect a shorted high voltage rectifier
diode or a bad magnetron, or a loose and possibly corroded connection on the magnetron's terminal.
The diode is a fairly
cheap fix, and your magnetron is still under the part warranty, but you would have to pay labor.
If you or someone you
know
decide to look into it, we have critical safety information and
disassembly information at our site, and our link is at our listing here on FixYa.
There
should be a "mini-manual" (tech sheet) hidden inside the unit
behind the
control panel or hidden on the left side behind the grille, which is
very helpful when troubleshooting, testing, and locating components.
At
our Web site, we have a video
available showing how to remove a typical
over the range control panel assembly in under 5 minutes.
Here are some links you
or someone you know can use for test help, but read their safety
warnings first:
http://www.gallawa.com/microtech/diode.html
(if it's not shorted or burned, it's
probably okay)
http://www.gallawa.com/microtech/mag_test.html
If it's within the magnetron portion of the warranty (5-9 years)
but out of the original full warranty (1 year), G.E. will cover the part cost, but not the cost to visit you or
the labor charge to do the work.
If it's within the mag warranty,
G.E. should send you the magnetron to do it yourself. Call them at
888-239-6832 with your model, serial, and manufacturing date.
If nothing else, you
can save about $50-75 if you remove it from the wall and take it to a
GE-authorized servicer.
You can find a
GE-authorized servicer by calling GE Appliance
Service at 1-800-848-7620 or here.
Accessing some components for testing and possible replacement will require you to remove the oven from the wall.
If
so, the installation instructions are very handy, and it's best to have
two people since the microwave can be heavy and awkward.
You can download GE
owner's manuals and installation instructions here.
We're happy
to help you with free advice and we'd appreciate your thoughtful rating
of our answer.
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