Maytag Washer Motor Grinding Sound During Agitation:... | appliancefaults.com

Technical Background:

The Maytag washer utilizes a Motor Control Unit (MCU) to regulate motor speed and direction. The MCU receives feedback from sensors and controls voltage to the motor windings. Voltage typically ranges from 120V AC during high-speed agitation to lower voltages during gentler cycles. A faulty component in the drive system creates friction leading to the grinding noise.

Symptoms:

The homeowner observes a loud grinding or scraping noise during the wash cycle, specifically during the agitation phase. The washer may still operate, but the noise is persistent and concerning.

Possible Causes:

Worn or damaged motor coupling.
Foreign object lodged in the wash plate or impeller.
Failing transmission or gearbox.
Worn or seized motor bearings.
Damaged drive pulley.

Solution:

1

Unplug the washer from the 120V AC power outlet and turn off the water supply valves.
2

Remove the front or top panel of the washer to access the motor and transmission area. Use a 1/4-inch nut driver or a 5/16-inch socket.
3

Inspect the motor coupling for wear or damage. A common failure point is cracking or separation of the rubber or plastic coupling. Replace with a new coupling.
4

Check for any obstructions, such as coins or clothing, lodged between the wash plate and the inner tub. Remove any obstructions.
5

Manually rotate the motor pulley. If the motor bearings are failing, you will feel resistance or hear a grinding noise. Test motor winding resistance using a multimeter: Expect readings between 3-8 ohms. Replace the motor if necessary.
6

Inspect the transmission for leaks or excessive play in the shaft. A failing transmission will often exhibit oil leaks or a grinding noise even when the motor is not running. Replace or rebuild the transmission if needed.
7

Reassemble the washer, ensuring all connections are secure, and test the operation.

Safety Warning:

Always disconnect the power to the appliance before performing any repairs. High voltage is present inside the washer. Use proper Lock-Out/Tag-Out (LOTO) procedures to ensure the power remains off during repairs.

Prevention:

Regularly check and clean the lint filter. Avoid overloading the washer. Periodically inspect the motor coupling for wear and tear. Use the correct amount of detergent.

Expert Tip:

Many Maytag washers have a diagnostic mode. Consult the service manual for your specific model, but often you can access it by pressing a specific sequence of buttons (e.g., Power, Start, Power, Start). This can help pinpoint error codes and component failures.

Frequently Asked Questions

•How do I access the diagnostic mode on my Maytag washer?

Consult the service manual for your specific model number. Typically involves pressing a sequence of buttons like Power, Start, Power, Start within a short time frame.

•What is the correct motor coupling for my Maytag washer?

Locate the model number of your washer and search for the correct motor coupling replacement part online or at an appliance parts supplier. Using the wrong coupling can cause further damage.

•What are the typical resistance values for a good motor winding?

Typically between 3-8 ohms. Open or shorted windings would read infinite or near-zero resistance, respectively.

Maytag Washer Motor Grinding Sound During Agitation: Troubleshooting Guide

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I access the diagnostic mode on my Maytag washer?

•What is the correct motor coupling for my Maytag washer?

•What are the typical resistance values for a good motor winding?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: