20 Most Recent GE Profile Spacemaker JVM1871 Microwave Oven Questions & Answers


Hi,
Here is a tip that will help you to figure out what is wrong with yourMicrowave Oven....

Microwave Oven Basic Troubleshooting Tips

heatman101

GE Profile... | Answered on Nov 28, 2017


SAFTY FIRST

UN -PLUG IT,,,,, THAT "FUNNY SMELL" SOUNDS LIKE IT IS SHORTING OUT
PERHAPS THE MEGATRON HAS GONE BAD, THE MEGATRON IS THE
HEART OF ANY MICROWAVE
AS A EX- FIREMAN, I KNOW FROM FIRST HAND EXPERIENCE THAT
"A FUNNY SMELL " OR " UN-USUALL SMELL COMING FROM AN ELECTRICAL
ITEM IS A SIGN OF DANGER

GE Profile... | Answered on Feb 25, 2015


Microwaves use a magnetron to generate microwave energy and direct it a rotating blade wheel to spread them around the inside of the oven. If there is any metal in the area to be heated, or any of the blades are bent, even a bit, the microwave energy can be reflected back up to the magnetron area. In this area there is now too much power and it sparks away, so it does not heat the item in the oven.
Because it is sparking it is now a safety hazard the sparks may melt and set fire to plastic parts in it. This is serious it could burn your house down. Bin this microwave and cut the cable off it to make sure no one else ever uses it.

GE Profile... | Answered on Dec 20, 2013


That's odd, but it looks like the owner's manual and some parts lists were not updated to reflect the addition of the automatic louver.

The light you need to replace is part number WB08X10027 and it's an assembly with the bulb, socket, and cable.

It's not shown on some suppliers' parts lists, but it is reference number 48 on the diagram, found here. It is shown near the top center of the diagram.

You can order it from the Pros here.

You must not touch halogen types with your bare skin, as the oils will shorten the bulb life.

It looks like you will have to remove the oven 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.

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.

GE Profile... | Answered on Sep 24, 2013


Hi and welcome to FixYa, I am Kelly

Often it is a simple part replacement. There are 3 parts that can usually cause this. The most common failure is the power diode. You remove the chassis to gain access and then make sure you hold a screwdriver and ground the large capacitor at least 3 times across the terminals. Then you can check the diode by using an ohm meter across the terminals. It should read continuity in one direction only. (reverse lead polarity) If it reads in both directions OR there is no continuity then the diode has failed. Next you test the high voltage capacitor by reversing the leads and watching each time for a jump in resistance then the meter returns to infinity. (Diode must be disconnected) No jump in resistance after reversing the test leads or constant resistance = bad capacitor. Lastly the Magnetron could have failed. You read resistance of the leads of the Magnetron with one lead disconnected. You must read resistance. No resistance = bad magnetron

I used model JVM1871SH02 as an example since you did not include a complete model number. However, the parts I am referring to are common to all JVM1871 models.

The parts can be found here:
http://www.appliancepartspros.com/partsearch/model.aspx?model_id=5230815

Diode is Item 77 of the above link

The Capacitor is item 75 of the above link

The magnetron is item 61 of the above link.

These are the 3 most common failures. There is a very very remote possibility that the high voltage transformer has failed (Item 83 of the above link)

When you open it up look for any signs of burned or hot wires / contacts then perform the tests in the first paragraph above.

You should be able to breathe life back into your microwave by troubleshooting. One thing to note is you can walk into a LOCAL Appliance parts supply with failed part in hand and purchase GENERIC parts to save yourself loads of money. The diode lists for over $50.00 and I know for a fact you can buy a non-GE one for less than half that at a local Appliance Parts source.

Thanks for choosing FixYa,
Kelly

GE Profile... | Answered on Aug 15, 2011


Sounds like you have a bad magnetron,that is the part that produces heat for your unit. You can definitely or that part but you will have to have a technician install that because that part connects to another part that has high voltage extremely dangerous.


The repair will cost over 300.00. Some of these microwaves have a 5 year warranty on the magnetron. Refer to your owners manual. If the part is under warranty it is worth fixing. If not I would buy a new microwave.


Hope helps.

GE Profile... | Answered on Jul 10, 2011


I'm not clear enough on what your exact symptoms are to be sure.

But it sounds like it may be as simple as a door switch, loose or broken door switch mount, or misaligned hinge, but it may be a bad keypad or a controller issue.

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.

Then you can see the door switches. See our help files here:

http://031d26d.namesecurehost.com/mwd/safety.txt
http://031d26d.namesecurehost.com/mwd/disassembly.txt
http://031d26d.namesecurehost.com/mwd/doorsw.txt


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

Feel free to contact me directly (and please remind me of your full model number from the tag on the unit and detailed symptoms) for more free information & help.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

GE Profile... | Answered on Jun 21, 2011


Hopefully this is just some grease on the waveguide cover / stirrer cover or the cavity wall.

If it's progressed to waveguide or magnetron damage, that gets expensive.

The first step is to inspect and clean these areas and replace the cover if it is damaged.

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

If the cavity metal is chipped or discolored, the area will first have to be sanded smooth and cleaned and dried thoroughly.

Then you can apply some high-temperature appliance paint, available from places like Wal-Mart, Lowe's or Builder's Square.

If your waveguide cover / stirrer cover is burned, it will need to be replaced.

It provides critical protection for the magnetron.


We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

GE Profile... | Answered on Jun 21, 2011


Hi,


Here is a tip that will help you to figure out what is wrong with your Microwave Oven....

Basic
Microwave Oven Troubleshooting Tips

heatman101


l'

GE Profile... | Answered on Mar 04, 2011


It sounds like the magnetron may have either failed or is not being supplied with the extremely high voltage required to run it.

YOUR SAFETY IS PARAMOUNT

This is a job for a professional but if you are safety clued up, here's instruction.
Make sure the !!!!capacitor is discharged!!!!! before attempting any sort of repair.
Check the door interlock switches first then the high voltage diode with either an AVO model 8 or moving coil meter on high resistance range for short circuit, (DVM's won't show the fault!), the capacitor can fail and go short circuit, the feed fuse on the primary of the high voltage transformer and then finally, the magnetron is best checked by substitution.
Hope that helps.



Load test.

A simple safety test.
Place 1/2 litre of water in a glass container. Measure the temperature of the water.
Place in microwave and heat on full power for 1minute.
Measure the temperature after it has stood for 1minute.
If the temperature difference is more than 9 degrees Celcuis the magnetron is working and producing about 700Watts of heat.
If your microwave is labelled with 900 or 1000Watts. That is about right.
If the temperature is less then the magnetron is not working properly and may need replacing.


This a only a rough guide and any doubts you should consult an authorised service agent.

GE Profile... | Answered on Jan 29, 2011


See these files:
http://031d26d.namesecurehost.com/mwd/safety.txt
http://031d26d.namesecurehost.com/mwd/disassembly.txt
http://031d26d.namesecurehost.com/mwd/doorsw.txt

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.

dee77f7.jpg

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

GE Profile... | Answered on Jan 17, 2011


Disconnect the power source.
Remove the cabinet to reveal the wiring.
Locate the large transformer. Next to the transformer is the magnetron and diode assembly. MAKE SURE THE CAPACITOR IS DISCHARGED AS LETHAL VOLTAGES ARE HERE!
Disconnect the diode and remember where the connections came from, (a phone camera is useful for this job). Remove the magnetron.
Replace the magnetron and fit the diode pack.
Replace the cabinet and test by placing 1/2 litre of water in the machine, having first measured the temperature of the water.
Microwave for 1 minute.
The water should have increased in temperature by at least 10degrees Celcius. If it has, it is to specification and you have repaired your microwave oven.

GE Profile... | Answered on Dec 28, 2010


Mostlikely the magnetron circuit has failed. The magnetron is the part the makes the microwaves that heat the food. It can be pricely to repair and if the magnetron needs to be replaced, the cost of replacement typically is about the same as buying a new oven. Sorry.

GE Profile... | Answered on Dec 06, 2010


Hi,
Here is a tip that will help you to figure out what is wrong with yourMicrowave Oven....

Microwave Oven Basic Troubleshooting Tips

heatman101

jkfk

GE Profile... | Answered on Sep 30, 2010


From your description it sounds like the magnetron has failed in this oven. That's the part the makes the microwaves to heat the food. It typically fails by shorting out and making a loud hum noise. It not usually worth fixing since the price of a replacement magnetron is almost as much as a new oven.

GE Profile... | Answered on Jul 01, 2010

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