Kenmore 80 Series Washer: Loud Spin Cycle Troubleshooting... | appliancefaults.com

Technical Background:

The washer's Motor Control Unit (MCU) regulates motor speed and direction for both agitation and spin cycles. The MCU sends 120V AC to the motor windings. A failing mechanical component in the drive train amplifies motor noise during high-speed spin due to increased stress and vibration.

Symptoms:

The Kenmore 80 Series washer agitates normally, but during the spin cycle, it emits a very loud noise, described as sounding like a jet engine. This indicates a potential mechanical issue within the washer's drive system.

Possible Causes:

Worn or damaged tub bearing
Foreign object caught between the tubs
Failing motor coupling
Worn motor bearings
Damaged or unbalanced drive pulley

Solution:

1

Disconnect power to the washer at the breaker panel.
2

Remove the front panel of the washer using a 1/4-inch nut driver.
3

Inspect the tub bearing for wear or damage. Check for play or excessive noise when manually rotating the inner tub.
4

Examine the motor coupling for cracks or damage. Replace if necessary.
5

Check the motor bearings for unusual noise or resistance by manually rotating the motor shaft.
6

Inspect the drive pulley for damage or unbalance.
7

If the tub bearing is suspected, disassemble the washer to access and replace the bearing using a bearing puller.

Safety Warning:

Always disconnect power to the washer before performing any repairs. Use Lock-Out/Tag-Out procedures to prevent accidental energizing of the circuit. The appliance operates at 120V AC; avoid contact with live wires.

Prevention:

Regularly inspect the washer for any unusual noises. Avoid overloading the washer to prevent excessive strain on the motor and drive components. Clean the tub regularly to prevent build-up that could lead to imbalance.

Expert Tip:

To enter diagnostic mode, simultaneously press and hold the Start/Pause and Cycle Signal buttons for 3 seconds. This will display error codes or allow you to run specific tests.

Frequently Asked Questions

•How do I specifically identify if the tub bearing is the source of the noise?

Manually rotate the inner tub with the washer unplugged and listen closely for grinding or rumbling noises. Also, check for any vertical play in the inner tub. If you can lift the inner tub slightly, the bearing is likely worn.

•What type of grease should I use when replacing the tub bearing?

Use a high-quality, water-resistant, and high-temperature lithium-based grease specifically designed for appliance applications. Avoid using general-purpose greases, as they may not withstand the operating conditions inside the washer.

•Where is the motor coupling located and what does it connect?

The motor coupling is located between the motor and the transmission. It connects the motor's rotational force to the transmission, which then drives the agitator and spin basket. It's typically a two-piece rubber or plastic component that's designed to break under extreme load to protect the motor and transmission from damage.

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I specifically identify if the tub bearing is the source of the noise?

•What type of grease should I use when replacing the tub bearing?

•Where is the motor coupling located and what does it connect?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: