How To Fix a Microwave Turntable That’s Not Turning?

When your microwave’s turntable is broken, it can turn a quick meal into an infuriating task. Once you plug yours in, you put your food inside, hit start — and nothing moves. If the plate inside your microwave isn’t spinning, chances are your food is going to cook unevenly. Yes, you could be looking at a bunch of cold spots and overheated edges.

Annoying, right? But not to worry — a broken microwave turntable does not necessarily mean you need to buy a new microwave for your kitchen. Before you call a repair person or start looking for replacement models, there are a few easy things you can check, and fix, yourself.

In this guide, we will show you the most common reasons your microwave turntable is not turning — and exactly what you can do about it. Let’s get your microwave turntable to spin again!

Microwave Turntable Not Working: Causes and Fixes

If you are facing any of the following issues,

• microwave plate not spinning,
• microwave turntable not turning smoothly,
• microwave stopped spinning,
• microwave turntable not working,

you would need to identify the cause of the issue and then apply these effective troubleshooting techniques to fix it.

1. Misaligned or Dirty Turntable Components

Misalignment or grime is one of the easiest and most common problems that can occur. Over the course of time, crumbs, spills, or grease can accumulate underneath the turntable, on the roller ring, or on the turntable motor coupler (the small rotating piece in the center).

If the turntable isn’t seated properly, or if debris is preventing movement, it simply won’t turn.

How to Fix?

To clean underneath the turntable, please follow these simple steps:

• Remove the glass tray and roller ring.
• Clean both thoroughly in warm, soapy water with a soft cloth or sponge.
• Clean the inside of the microwave, and specifically the turntable coupler.
• Realign the roller ring into its groove.
• Properly place the glass tray on top, ensuring it locks into the turntable coupler.

After working through this cleaning and re-alignment process, retest the microwave. If the issue was either dirt or misalignment, the plate should now turn freely as it is supposed to.

2. Broken Turntable Coupler

The coupler is the small plastic or metal piece under the tray that connects the tray to the motor. It is in the center of the microwave and engages the glass tray to allow it to spin. If this piece is damaged, cracked, stripped or worn out, your motor may be fine and running, but it will not be able to rotate the plate.

How to Fix?

• Remove the glass tray and roller ring, which will expose the coupler.
• Then gently lift or pull the coupler out (some ratchet out; others may require a screwdriver).
• Look for cracks, wear, or breakage.
• If damaged, purchase a microwave replacement part (be sure it is compatible with your model).
• Then snap or screw in the new coupler, realign the roller and tray, and run a brief test.

This is an easy replacement that anyone can perform at home, and replacement couplers are often very inexpensive.

3. Faulty Turntable Motor

If the coupler and the tray are working fine, then the next place to check is the turntable motor. The turntable motor is a small electric motor that actually rotates the tray, and it is located under the bottom panel of the microwave.

A turntable motor loses power, or wears down (even this can happen over time, despite ‘looks’), and the tray does not turn even though all the other parts look fine.

How to Fix?

Important: Only do this if you are comfortable working on electrical devices. Always unplug it before it is opened!

• Unplug your microwave.
• Unscrew and remove your bottom panel (you may have to turn the microwave on its side).
• Find motor (usually right underneath turntable coupler).
• Using a multimeter, test for continuity on motor.
• If the motor is bad or has no continuity, then you will have to replace it.
• Order the exact motor from your microwave:-
• Unscrew the bad motor and remove the wiring (take a picture so you remember where each wire goes).
• Connect the new motor, screw it into place, then reassemble and test.

Switching motors takes a bit more work, but can be done relatively easily using just a few tools, and keep you from having to purchase a brand-new appliance.

4. Turntable Function Turned Off

Some microwave designs have a turntable on/off feature, allowing you to turn off the rotation (e.g., for large items). If you accidentally turned this off, it is not a malfunction; the microwave will heat the food while allowing the turntable to be stationary – on purpose.

How to Fix?

• Check the control panel to see if there is a “Turntable On/Off” button.
• If there is one, press it to toggle it back on.
• To find the feature or if you are unsure how it works, refer to your user manual.

Some users mistake this simple feature as a defect when all it takes is the right button-pressing.

5. Control Board or Internal Electrical Failure

The problems mentioned above are do not apply, there may be a more complicated issue with the microwave’s control board or internal wiring that is preventing the turntable motor from receiving power, even though everything else in the microwave is working fine.

How to Fix?

• Unplug the microwave and do not use it again until it can be inspected.
• Unless you are experienced with electronics and appliance repair, this is the time to call a service professional. They can diagnose whether it is the control board that is faulty, or if there is a break in the wiring.
• Control boards can be replaced, but often these repairs will cost as much or more than a new microwave after considering the age and warranties of the microwave.

6. Damaged Roller Ring

The roller ring beneath the glass tray is for supporting the tray and also provides a rotating function. If any of the wheels are broken, missing or stuck then the dish may wobble, or if stuck will not turn at all.

How to Fix?

• Remove the roller ring and check the wheels.
• If jammed, clean them.
• If broken or warped, find a roller ring that fits your model and replace it.

This is another simple and inexpensive repair that returns smooth operation.

Still Not Fixed? Call Appliance Medic

If you’ve cleaned, realigned, replaced components, or tested the motor and the microwave turntable still turns after all your attempts, it’s time to reconsider what you’re doing.

Doing anything else isn’t worth the possible damage you could do by poking around if you don’t have the tools, experience or knowledge to do so.

Appliance Medic provides experienced microwave repair services throughout the New York and New Jersey areas. Our certified technicians will know how to solve just about any problem, including motors and control boards.

Schedule a service at Appliance Medic to get your appliance up and running quickly, and avoid all the guess work in troubleshooting.