Maytag Pet Pro Washer: Loud Clunking Noise During... | appliancefaults.com

Technical Background:

The Motor Control Unit (MCU) controls the motor speed and direction during the wash cycle. The MCU receives feedback from sensors and controls the voltage to the motor windings to achieve the desired agitation. Voltage paths include 120V AC to the MCU and lower DC voltages for sensors and control circuits. Erratic motor behavior or mechanical stress on the drive components can trigger abnormal noises.

Symptoms:

The homeowner reports a loud clunking noise originating from the Maytag Pet Pro washer during the agitation cycle. The noise is not present during filling or draining, only when the agitator is moving.

Possible Causes:

Worn or damaged drive belt
Worn or broken motor coupler
Foreign object caught in the agitator or tub
Damaged or worn tub bearing
Failing transmission
Loose or broken suspension components

Solution:

1

Unplug the washer from the outlet.
2

Remove the cabinet to access the internal components. Use a 1/4-inch nut driver to remove screws.
3

Inspect the drive belt for wear, cracks, or damage. Replace if necessary.
4

Examine the motor coupler for cracks or breaks. Replace if damaged.
5

Check for any foreign objects lodged between the agitator and the wash tub. Remove any obstructions.
6

Inspect the tub bearing for play or excessive noise. If worn, consider replacing the bearing or the entire tub assembly.
7

If the transmission is suspected, consult the service manual for diagnostic procedures. Transmission replacement is a complex repair.

Safety Warning:

Always disconnect the power to the appliance before performing any repairs. Use proper Lock Out Tag Out (LOTO) procedures to prevent accidental energization. High voltage is present inside the appliance; avoid contact with electrical components.

Prevention:

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

Expert Tip:

Enter service mode by pressing and holding the start button, then pressing Power, Signal, Delay Start, and then Start again within 5 seconds. This will allow you to run diagnostic tests.

Frequently Asked Questions

•How do I safely remove the washer cabinet to access the internal components?

First, disconnect the power cord from the outlet. Consult the service manual for your specific model, but typically you'll need to remove screws from the rear or top of the cabinet using a 1/4-inch nut driver or Phillips head screwdriver. Some models have hidden clips that need to be released.

•What is the proper tension for the drive belt on my Maytag Pet Pro washer?

The drive belt should have approximately 1/2 inch of deflection when pressed midway between the pulleys. If the belt is too loose, it can slip and cause noise. If it's too tight, it can wear out prematurely or damage the motor or transmission.

•How do I tell if the tub bearing is bad?

A bad tub bearing will often make a grinding or rumbling noise, especially during spin cycles. You may also notice excessive play or wobble in the wash tub when you try to move it by hand. If you suspect a bad bearing, it's best to consult with a qualified appliance technician, as replacing the bearing can be a complex repair.

Maytag Pet Pro Washer: Loud Clunking Noise During Agitation Troubleshooting

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I safely remove the washer cabinet to access the internal components?

•What is the proper tension for the drive belt on my Maytag Pet Pro washer?

•How do I tell if the tub bearing is bad?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: