From the descriptions it likely the magnetron has failed. If you have a digital multimeter post me a comment and I will give instructions to do a rough test.
SOURCE: Won't heat
Hello,
The Microwave's "Magnetron" is what heats things up. This is true for all Microwave's. The magnetron is normally on the left and sends excited electrons across the interior. Those electrons bounce around inside until their energy is spent.These excited electron 'waves' are slightly larger than the hole openings in the front door glass panel black grid. Usually, when a magnetron goes you would see and hear some popping and witness some arcing inside the interior. However, you may not have been nearby when this happened. Since you heard popping behind the control panel, you probably have electronic failure in the control panel and that failure may have been precipitated by the magnetron or not. In any case, it is very dangerous to disassemble a Microwave and access the magnetron unless you are trained and have been qualified to do this.
With the cost of Microwaves having stabilized and also being quite low compared to 20 years ago, I would take it to a warranty service provider in your area that also sells them, such as Home Depot for example. That way, if it is too costly to repair compared to a replacement cost you can shop for a new one and may even get a discount should you ask them to give you one.
Sorry for the apparent bad news but if you feel this is the answer you're looking for please rate this solution as fixed or helpful. It means a lot to those of us who work for you in the free area instead of for a fee.
You can phone or write this address below for questions regarding your warranty or warranty repairs. Othewise, you can shop online for a replacement at homedepot.com or sears.com
SOURCE: GE spacemaker Microwave-Model # JVM1441WD003 no heat -clock ok
This
is usually caused by either a bad door switch or a loose door switch
mount, which are pretty simple problems to fix.
Even though a door
switch clicks, it may still be bad inside.
Door switch
or mount trouble is usually caused by slamming the door or by opening
the
door while it's cooking without hitting the Stop pad first.
There are
plastic mounts inside the microwave which hold the door switches and
onto which the door latches lock when you close the door.
The screws on these
mounts may be loose. If they get too loose, the switches will not be
activated properly.
Sometimes it's
a broken tab on the switch holder, allowing the switch to rotate just
out of position. This tab
can be hard to see, since it is under the
bottom edge of the switch.
If the mount is broken, it's usually more economical and
safer to add a dab or two of hot glue to the mount to secure the
switch. Let it cool for about 30 minutes before using.
One test that sometimes
helps is to
gently lift up (and/or push down) on the door or handle as you try to
start it. If it works or tries to work, then it's a door switch mount
or
door alignment issue.
If you or someone you
know decide to look
into it, we have critical information on safety, disassembly and door
switches at our site, and our link is at our listing here on
FixYa:.
You can find helpful
exploded view diagrams and order parts by entering your full model
number here.
There should also be a "mini-manual" hidden inside the unit behind the control
panel or hidden on the left side behind the grille, which is very
helpful when troubleshooting & testing.
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.
If you only need a
switch, you can order a universal type here for $5 postpaid.
If you think the problem
is on the control panel, we repair these nationwide by mail
for $39.95 postpaid in most cases in about a week or so.
We're
happy to help you with free advice and we'd appreciate your thoughtful
rating of our answer.
SOURCE: GE JE1860 Microwave is not heating
Test the high voltage capacitor,the rectifier diode.or the magnetron. If all this are fine, test the control board.
The
diode and capacitors can br tested. The capacitor must be
alloweddischarge before testing, or you risk to get electrocuted, even
ifpower is off. Capacitors can get discharged by shorting their
twocontacts.
Before replacing the magnetron test also the control board.
Replace the magnetron if the checks and all of the high voltage component tests are good, but the unit still does not heat.
All locations, and description of this parts can be located using the diagram here: Counter top.
Parts must be tested to find out what is wrong.
Remember that microwaves are potentially dangerous devices if not repaired properly, the job must be done by a competent person.
A microwave energy leakage test must always be performed when the oven is serviced for any reason.
Regarding parts, contact the seller here to purchase parts. (here in UK).
SOURCE: loud pop and microwave doesn't heat anymore
I have a GE Profile Spacemaker model JVM3670WF001, purchased I think in 2003. Pop sound, no Heat. Light goes on, carousel goes around,
Repair or new microwave
SOURCE: Heard a pop and now the unit does not heat
If the unit is not under warranty, I would probably buy a new one for a few reasons. First of all it sounds like it could be the magnetron, and replacing them can be expensive (after that you are going to keep replacing parts like the weakest link). Finally, they can be dangerous, so I would not recommend on working on them yourself. If you shop around on the Internet, you will find a replacement one for half the price. I know this is a negative answer, but it is probably the safest answer.
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