20 Most Recent GE Spacemaker JVM1640SJ Microwave Oven - Page 8 Questions & Answers

Here are the installation instructions which should guide you for uninstalling as well. http://products.geappliances.com/MarketingObjectRetrieval/Dispatcher?RequestType=PDF&Name=49-40247.pdf

The next time the oven is running, wiggle the door without pulling it open. If the oven stops, you have a problem with worn hinges or latches, or a bad door switch.

As far as I know, the following procedure applies to all countertop microwave ovens. Unplug the oven. Remove the screws holding the top/side cover (there are some on a flange around the back, and usually others either on the sides or on a flange wrapped around the bottom on each side). Pull the cover back about 1/8" to unhook the front, then lift it off. You should see the lamp socket or a sheet metal box covering the lamp socket on top of the oven cavity (a few models have the lamp on one side or the back, but these are rare). If the lamp is enclosed in a box, remove the screws holding the box and lift or slide it off. (If you are unsure whether you are looking at the right object, open the door and look inside the cavity to make sure it matches the place where the light comes in.) While you have the cover off, check the fan on the right side to make sure it is reasonably clean and the bearings are running smoothly. If the cooling fins on the magnetron are dirty, wipe those off also. Do not touch the circuitry on the controller board with your fingers or a with metal tool held in your fingers. Static electricity from your body could damage the electronics, even if you can't feel a spark.

This is almost certainly a blown thermistor. This device is located at the air outlet on the microwave. This is a thermally sensitive resistor that cuts power if the unit overheats for safety. It can fail because of age also. Replace with the save value unit. You can get this part from electronics stores like Radio Shack.
Go to;
http://www.appliancepartspros.com/partsearch/modelsearch.aspx?model=JVM1640SJ

click on your model number. Then on the next page you can select diagrams to look at.

Unplug the oven and remove the top/side cover. Look for an envelope inside. If present, it will have a service and installation guide inside. I don't recall what "F3" indicates, but I think the guide includes a table of error codes. GE is generally quite good about providing service info with its products. Some other manufacturers will put a label inside the oven showing the circuit diagram - that is also very helpful, but don't expect anything from the cheap brands. When you are done, be sure to put the service information papers back exactly where you found them. You want them handy for the next time, but you don't want to put them in a spot where they'd get hot or be susceptible to liquid damage if you had a spill in the oven.

on the power supply board near the end of the power cord

F5 error message most often indicates a failed electronic control (although it can sometimes be caused by a failed oven temperature sensor. The sensor should be checked before replacing the control. It should read about 1100 ohms when at room temperature.

It depends on where you want to install it. Thet usually go below the cabinetts which are over the oven. IOt should have come with a template so that you can drill holes into the bottom of the cabinett so the holes you drill will match up with the holes in the microwave. Once done then there should be screws and fiber washers. Good luck, Marty

I have not worked on your model of microwave oven. I will make some suggestions based on past experience. If the bottom of the unit has stick-on type rubber feet, remove them to see if there are screws under them. Check for any labels on the bottom or rear that may have a screw under the them. By pressing along the area of the label see if you can feel a hole where screws may be under them. This will mean removing the label to gain access. As for removing rubber stick-on feet and labels, use a heat gun or a strong hair dryer to heat the affixment that is to be removed. I have also see some units where there are tabs to be released. Most of the time there will be a slot where by inserting a screwdriver and wedging it at the proper angle the tab will be released. There are also tab systems that will require a specific type of key from the manufacture to remove it. As for servicing your microwave oven, you will most likely need the service manual to be able to properly determine the fault and order parts. If your unit is considered serviceable (many low cost models are not supported for service), you can order the service manual and replacement parts from the manufacture. Manuals for microwave ovens generally cost about $15 to $35 to purchase depending on the model. For servicing a microwave it is best to be done by someone who is experienced, has the proper test equipment and tools, and can follow proper safety procedures. Microwave ovens use very high voltages with high current in specific areas. The power supply can be lethal if you get in contact. When servicing any microwave oven, after re-assembling and making it operational it is very important the proper radiation tests are done. The way the cover and door are mounted and how they are RF shielded is very important for safety. A certified microwave radiation leakage meter is very important to be used to detect for any dangerous radiation is being released while in operation. Even though you may not feel the radiation while using the oven, damage to living tissue can be done. Microwave oven radiation can cause cataracts and various types of tumors. The thyroid, liver, and kidneys are very sensitive to this type of radiation. When a microwave oven is properly shielded and is tested to not be emitting any radiation in the area it is perfectly safe to use.

Hi, Consumer. We're sorry to hear about the difficulty with your washer. Below are links to our Use & Care guides, Parts Diagrams, Troubleshooting information and the Service are of our website. We hope this helps! http://bit.ly/112Lu7q

there could be many reasons for your microwave to be dead. First did you check if it has power coming to it? Is the plug out of the socket? Sometimes the power plug is behind the microwave and it is hard to see unless you slide it out and look. When you say dead, is the display light up? If so does it indicate PF (Power Failure) Sometimes the internal fuse blows out because of a short, usually caused by the diodes being shorted or even the transformer or the magnatron tube itself. If you have any of these problems except for the fuse then I would recommend that you replace the microwave with a new one because yours probably wouldn't pay to fix. Good luck, Marty

Any part on the line voltage or hi voltage will blow the fuse if shorted, Does the fuse blow as soon as you try to power up the microwave ?