JES1142SJ04 General Electric Microwave - Instructions

Continuity checks showed the flame sensor was open. Schematic notes it opens at 217 degrees and closes at 30 degrees. Removed sensor and placed in freezer for twenty minutes. Tested sensor and it was now closed, reinstalled and microwave worked normally. Ordered new sensor in case the original is operating at too low a temperature.

First, I read the PartsSelect DIY report by Linda, Warsaw, IN. With confidence, I purchased the magnetron. Upon receipt, I took the built-in microwave out of the cabinet, set the unit on the kitchen floor, and was stopped cold by the Safety Torx nuts on the reverse of the unit. Borrowing the right wrench allowed the 20 minute start-to-finish part changeout and reinstallation of the unit in the cabinet to proceed. The old magnetron was the defective part. Discovery of the 10-year Parts-Only warranty on the less than 10-year old unit was insufficinet to guide me to take the unit in for their Labor bill to repair. New part in hand, it just was that easy - and assumed to be no less expensive.

First I ordered and replaced the diode. That did not help. Then I ordered both the magnetron and the thermostat magnetron because I didn't know what I was doing. After I replaced those, it still wouldn't heat. So I called an electrician. He noticed I had knocked a wire loose. I connected it and the microwave worked. I reconnected the old magnetron, just to test it. It didn't work. Then I put the new one back in. It's working just fine now! It took quite a while to put everything back in place because it was a built-in. But it was a lot cheaper than getting a new microwave, even with the cost of a repair man to show me I had a loose wire!

I took the cover off and followed the electric current to see if it got as far as the display.
I did not get past the thermostat shut off where the current stoped. I jumped the thermostat and the unit worked. The part was so inexpensive that I decided to replace it rather than try and freeze the old one in hopes of "reseting" it.

First step was to discharge the transformer's capacitor (very important to do), before attempting any microwave repair. I opened the diagram/schematic found inside the microwave oven and followed the technician's troubleshooting steps; checked the capacitor; it checked OK, I checked the diode for a short, it checked OK. I checked the windings of the transformer that supply the power to the Magnetron; it checked Ok. I proceeded to order the parts; the Magnetron and the sensor located on the top part of the Magnetron. When the parts arrived; I went straight to the location of the Magnetron, I attached the new sensor on the new Magnetron and removed the old one. I connected the harness from the transformer to the new Magnetron and tested the microwave oven and it worked perfectly like a new one. This site has a great deal of information about repairs for the do it-yourself like myself, unlike other appliance's parts websites. Thumbs up to this site, I am very pleased with my order, I received it in a timely fashion as promised. I recommend it to everyone; this site is the best place to shop for appliances parts.

Door microswith was stuck on. This is caused, I discovered, by frequently stopping the oven, while running, by opening the door rather than using the stop button. Causes the switch to arc and eventually fail. This causes the safety microswitch to trip the breaker when door is opened. There are little nubs sticking up on the spade connectors. You must squeeze them down before you can remove them from the switch. The main door switch is the upper one, mounted at an angle. You have to remove the latch assembly to remove the switch. The problem was obvious once I got the switch out. This problem could also blow the fuse, but in my case the breaker tripped first. Use an ohmmeter to check switch and fuse. The door switch is normally open. The safety switch is normally CLOSED. Instructions inside were helpful and described this problem. So, avoid this repair by always stopping oven with stop button!

A fragile glass tray providing a rotating surface for the microwave required replacement. The tray arrived scrupulously packaged to insure contents production. Unpacking was simply accomplished and installation achieved without undue effort. Thank you for prompt delivery and consideration for the attention paid to my purchase.

removed cover and tested fuse, fuse ok, check flame switch (thermostat) bypassed it with thin wire ,all power on!!...ordered it, got it, replace it within 5 min, as soon as part arrived.

Traced out 120volts from neutral to hot though fuse, and "high limit" switch screweed to far side of oven exterior cavity. High limit thermostat was "open". Jumped it out to see if unit would produce heat. Melted 1/2 cup of ice in thirty seconds. Ordered new part. Later foud out hi limit can be "re-set" by subjecting it to sub-freezing temperatiures. This is true, but I installed new part just to be safe. Machine is working fine now and has been in daily srvice for over two weeks.

It pays to troubleshoot a broken appliance before thinking about buying a new one. I removed the cover and found the manufacturer's circuit and troubleshooting diagrams inside. The fuse was good, next in line was the flame sensor. Meter showed it was open, so I knew that was it. Disconnect the wires and screw, replace part, replace cover. DONE! I knew I had the right part from the pictures on PartSelect's web site. Total cost under $20 compared to ten times that for a new one. Had the part in two days.

The repair was simple. replace the broken tray with the new one.....Done.

I called partselect after looking at their web site to confirm that I was ordering the right part. They were very helpful. Partselect prices were lower than competitors even after shipping. The part came the very next day. I was pleasently surprised how quick and efficient they were. Thank you partselect for your assistance.

Put it right in

Removed the three screws holding the cover on. then rmoved the two wires from the capacitor. Removed the screw holding the end of the zener diode to the chassis. Removed the diode from the capacitor. installed the new capacitor and replaced the blown fuse then reversed the removal process.

Open the microwave tray, set the class cooking tray on the rotating device an done. Real peace of cake. Thank you for the promp delivery. Your future costumer, raul.