WHEN CAROUSEL TURNS, IT TURNS JERKY - Microwave Ovens

1. Worn plastic rollers in the carousel support ring
2. Incorrect reinstallation of the carousel plate after cleaning

That sounds like there is more than one fault, but maybe not. I suggest you get an appliance engineer in to take a look at it.

what's sparking... is it by the Magnatron window... or the carousel?...
If there is a carousel... take it out...
if its by the magnatron window,,, then...houston... we have a problem...
might be contamination... and that may require opening up the unit... sorry...
hopefully it's only something floating around in there that's causing the arc...

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/lisa_52daba487e5b4d53

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

Basic Microwave Oven TroubleshootingTips

heatman101

I believe your turntable is belt driven as opposed to direct drive. Your little belt is nearing the end of its useful life, I think.

Remove the cabinet. Turn the oven on its back. Look at the bottom.

If its under warranty you can have it replaced, otherwise its more than likely the magnetron tube which would cost more than the microwave to fix. You would be better off buying a new one

turn table motor going out

You probably have a defective magnetron or blown fuse supply power to magnetron.

You should be able to access the turntable motor if you remove the left side filter under the microwave. Disconnect the power, remove the left filter and look up inside that area, the motor may have a cover or plate over it, if so remove it, the motor will be held in with 2 screws (usually) and there will be 2 quick disconnect wires attached to it. If you cannot get to it that way you may have to remove the bottom of the microwave (underneath), should be only 3 to 5 screws holding it in place, the side to the wall will be hinged, once you pull the screws just let it hang or swing down away from you. Then follow the above directions. Make sure that you are getting the correct motor, there are two types, one is a square shaft (WB26X10037) and the other is a "D" shaped shaft (WB26X10038).

It sounds like your turntable motor may be going bad. It is located UNDER the carousel and easy to get to by removing a few screws from the bottom of the oven. You can try running the oven without the carousel tray and watch the spindle to see if you can detect the same jerking motion. This would confirm the motor has a problem. If the spindle runs smoothly with no weight on it, but begins to jerk with the carousel placed back on it, the motor could still be bad, but you may also have a spindle that is slipping. In either case, replacing both would probably be a good idea just to be sure. Make sure you place a glass of water on one corner of the oven. It's not recommended to run a microwave oven empty. If you determine the motor is defective and want to replace it, make sure you unplug the oven and remove the bottom panel of the oven. There should be a couple of wires connected to the motor and the spindle just pops off from the inside of the oven cavity. It's a fairly simple repair job and will run about $30-$40. Let me know if this helps.