20 Most Recent GE JVM1790SK Convection/Microwave Oven Questions & Answers

You can order a turntable of off eBay and as for the other tais a trial and error thing you will just have to mess with it microwaves vary

JVM1790SK - May 27, 2017 The first thing to do is be sure your outlet works and works "under load." The best way to test it under load is with a toaster or hair dryer. You can also try powering the microwave from another outlet via long extension cord, but only for testing. If the outlet is good, then the problem will be inside the microwave. First unplug the oven. Then see my video here which shows you how to remove the grille and controller assembly on most over the range models. If you have any trouble getting the grille off once the screws are removed, slide the hood vent grille to the left about 1/4", then then pull it forward. On some models there are L-shaped clips that fit into a slot to hold bottom of the vent. There should be a technical 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. There were two versions of this model. The second version has more thermostats ("TSTAT" in the technical sheet). Both version have a 20A fuse on the filter board, a magnetron thermostat (MAG TSTAT), and an oven thermostat (OVEN TSTAT). To check the oven thermostat, you may need to remove the oven from the wall, in which case you should refer to your installation instructions. It and your owner's manual can be found online here. If you have a version 2 model, it will also have a heater thermostat (HTR TSTAT), and a bottom thermostat (BOTTOM STAT). When checking the thermostats, measure with a continuity checker or multimeter or ohmmeter. The fuse and all thermostats should read "closed" or near zero ohms. (Ignore the "HOOD TCO" which will have thinner, more colorful wires. It will read open, and that is normal. If it fails, it shorts, and then the hood fan stays on all the time.) You can order GE microwave parts here. FixYa doesn't notify me when there's a response, so if you have other questions, please contact me directly. - William E. Miller, AS-EET [email protected] http://www.microwavecontrol.com Microwave Oven Control Panel Repair Nationwide "Recycling by repairing since 1982"

magnetrons work only when the unit is cooking it smells like an insulation from overheating wire so could be a fuse and failing transformer take it in for a proper diagnosis and quote but if it is over 2 years old the cost to repair could be more than a replacement unit

The same happened on my oven. The only remedy is to change the display unit. A fairly simple job if the part is available, but best to weigh up the price and cost of repair versus a new oven.

Had you noticed that it was getting weaker? Taking longer to heat a cup of water/coffee? If so then the magnatron was getting weak and gave up the ghost. They are expensive, probably cheaper to get another oven. the other likely failure component is the capacitor. Careful they contain power even when unplugged. Caps are not that $$. good luck

a screw at the back side when removed get access to the bulb.Usually 40Watts bulb with1/2 " threaded

Pretty sure its the door interlock switches.you might need a service call from the authorized rep.... sorry.

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

You can call GE customer service to see if they have "drop-in" replacement.Otherwise, you can refer to your owner's manual for the specifications to compare to new ones. We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

My bet would be that the convection fan blade is loose on its shaft or has some other problem.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. You can find helpful exploded view diagrams and order parts by entering your full model number from the tag on the oven 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.

most of the ones i have replaced are 40 watt

Hi

Please elaborate the issue and tell me what you mean by it just does not pull. Hope this helps...please post back for further assistance.

Daniel

You may have overheated the microwave or waveguide area.If there's no obvious damage, you can still use it until such time that it develops heating trouble or other issues.This assumes of course that you never leave the oven unattended while cooking, as every owner's manual warns against. We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.