Change Motor but turn table does not turning?

SOURCE: Microwave turntable makes noise

yes motor may be bad or something is stuck . its not difficult to change .it is located at the bottom and has a wire connector with 2 spade clips

William Miller

• 9179 Answers
• Posted on Nov 23, 2008

SOURCE: Loud noise coming from turn table

The turntable system consists of the turntable motor, the turntable coupler, the roller guide / turntable support with rollers, and the glass turntable tray.

You can see and hear a video of how a turntable motor should sound when you rotate it by hand.

It's important for everything to be clean and dry. Lubrication is not recommended or required. That would only serve as a bandaid.

If it doesn't work right, or it makes noise, then it is broken or worn.

For more help from Magic Chef / Ewave see here or their contact page or you can order replacement parts here.

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

SOURCE: Model# MH7140XFQ-1 - All lights work,push buttons,

The loud humming noise is usally an indication that the magnetron is failing. The noise is commonly associated with a strange burning odor. I would suspend using the oven to prevent failure of any additional components and to avoid the risk of any potential arcing and sparking in the oven cavity attributed to a magnetron that may not be firing correctly. The magnetron is the main power tube that provides the RF energy to heat your food. A replacement magnetron can for this model can be purchased for about $50 if you wish to attempt to repair this oven yourself.

With that said, this repair is not recommended for someone that is not savvy with electronics. The internal high voltage network in a microwave oven has voltage potentials up to 4000 volts. Extreme caution must be exercised. The internal components should also never be troubleshot by an amateur with the oven turned on, or with the main power still applied.

If you wish to attempt the repair, follow these steps:

1. UNPLUG the oven, or turn off the breaker that feeds the circuit if the plug is not accessible.

2. If this is an over-the range model you will have to unmount the microwave. I would strongly recommend moving your range to avoid dropping anything on top of it, and remove the glass tray and carousel from inside the microwave. Then, while supporting the microwave oven from underneath, you will need a second person to unscrew the mounting bolts that hold the unit above the range. As the bolts are removed, the microwave front will tip down, allowing you to lift the back off of the rear mount bracket that is usually associated with mounting these ovens.

3. With the microwave unmounted, place it on a good working surface where you can access everything easily and remove the exterior cabinet cover.

4. Before touching anything inside make sure you discharge the high voltage network with a shorting probe. If you do not have a shorting probe, you can fashion one from a screwdriver with a wire attached to it with an alligator clip on one end of the wire. Then, clip the alligator clip end of the wire to the equipment chassis. With the other end of the wire attached to the screrwdriver, touch the bare terminals of the components in the high voltage network to ensure there is no capacitive charge remaining. These components include: the high voltage capacitor, high voltage diode, high voltage transformer and the magnetron. NOTE: In most cases the high voltage network will discharge on its own in a matter of minutes, but this procedure is still recommended as a safety precaution.

5. With the high voltage network discharged, locate and remove the connector plug on the magnetron and the mounting screws.

6. Install your replacement magnetron in the reverse order of the steps I just provided. DO NOT attempt to test the oven while the exterior cover is off, or attempt to run the oven with nothing inside. Put the exterior cover back in place before testing and use a glass of water (perferrably in a pyrex, microwae safe, container) and set the unit for 2 minutes on High. If the magnetron is functioning normally, the unit should run quietly and the water should be hot when time expires.

A replacement magnetron can be purchased at any of the following web sites:

searspartsdirect.com
pcappliancerepair.com
appliancepartspros.com
repairclinic.com

Prices differ between sites so shop and compare. The first three sites on the list, have helpful exploded view diagrams to assist you with locating and identifying any parts you may need.

The part number for a replacement magnetron for the model you have listed is W10245183.

You can use the part illustrations on the websites I referenced to assist you with your repairs. The magnetron was listed as item 14 under the "Magnetron and Turntable" parts section.

If you have questions about this repair, please post back and let me know. I hope you find this information helpful.

Testimonial: "Thank You Thank You! I really appreciate the information!Your response was super fast and exactly what I was looking for. I will let you know the outcome. Thanks a bunch!"

SOURCE: a loud buzzing noise when turned on, and is not

Hi,

Here is a tip that will help you to figure out what is wrong with your Microwave Oven....

Basic Microwave Oven Troubleshooting Tips

heatman101

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SOURCE: Everything works except the Microwave. Even when

Hi,

Here is a tip that will help you to figure out what is wrong with your Microwave Oven....

Basic Microwave Oven Troubleshooting Tips

heatman101