Whirlpool Cabrio Washer: Grinding Noise from Agitator -... | appliancefaults.com

Technical Background:

The Whirlpool Cabrio washer utilizes an electronic control unit (MCU) to manage motor speed and direction. The MCU sends signals to the motor via relays, controlling the agitator's motion. Voltage paths include 120V AC to the motor and lower voltage DC signals to the MCU. A grinding noise suggests a mechanical failure within this system, preventing the agitator from turning.

Symptoms:

The homeowner reports a loud grinding noise emanating from the washer during the agitation cycle. The wash drum remains stationary, indicating a problem with the agitator's drive mechanism.

Possible Causes:

Worn or damaged agitator dogs - These small parts engage to drive the agitator.
Stripped agitator splines - The splines connect the agitator to the drive shaft.
Failed gearcase or transmission - This component transfers power to the agitator.
Obstruction caught between the agitator and the tub - A foreign object can cause the agitator to bind.
Defective drive motor coupler - Connects the motor to the transmission.
Damaged drive pulley - Transfers power to the belt system.

Solution:

1

Disconnect the power supply to the washer at the breaker panel. Verify with a multimeter that 0V AC is present at the outlet.
2

Remove the fabric softener dispenser and agitator cap. Use a 7/16-inch nut driver to remove the bolt securing the agitator.
3

Lift out the agitator and inspect the agitator dogs for wear. Replace the agitator dogs if they are worn or broken. Part number W10721967.
4

Check the splines on the bottom of the agitator for stripping. If stripped, replace the agitator assembly.
5

If the agitator and dogs are intact, suspect a gearcase issue. Access the gearcase by removing the cabinet. Consult the service manual for disassembly instructions.
6

Inspect the drive motor coupler for signs of damage. Replace if broken. Part number W10863724.
7

After repairs, reassemble the washer and test the agitation cycle. Verify the drum rotates freely.

Safety Warning:

Always disconnect power to the appliance before performing any repairs. Lock Out/Tag Out (LOTO) procedures should be followed to prevent accidental re-energization. Be aware of high voltage components inside the washer. Discharge capacitors if necessary.

Prevention:

Regularly inspect the agitator for signs of wear. Avoid overloading the washer, as this can strain the agitator and gearcase. Clean the tub regularly to prevent buildup of debris that could obstruct the agitator.

Expert Tip:

Activate the diagnostic mode to check for error codes that may provide further insight into the problem. To enter service mode, with the washer powered OFF, press and hold the START/PAUSE button, then press POWER ON. Release START/PAUSE after 3 seconds. The control panel should illuminate in diagnostic mode.

Frequently Asked Questions

•How do I access the gearcase on this model?

Accessing the gearcase typically involves removing the top panel, front panel, and possibly the outer tub. Consult the service manual for specific instructions for your model. Be sure to disconnect power before disassembly.

•What type of grease should I use on the agitator dogs?

A silicone-based grease is recommended for lubricating the agitator dogs. This type of grease is water-resistant and will not damage the plastic components.

•How much does a new gearcase cost for this model?

The cost of a new gearcase can vary depending on the supplier. Expect to pay between $150 and $300 for a new gearcase. Consider the overall cost of the repair versus the cost of a new washer.

Whirlpool Cabrio Washer: Grinding Noise from Agitator - Troubleshooting

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I access the gearcase on this model?

•What type of grease should I use on the agitator dogs?

•How much does a new gearcase cost for this model?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: