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

Technical Background:

The washer's Motor Control Unit (MCU) sends a 120V AC signal to the motor windings to initiate agitation. The motor drives the gearcase, which converts the motor's rotational motion into the reciprocating motion of the agitator. The motor coupling connects the motor shaft to the gearcase input shaft. Failure in any of these components can result in the grinding noise.

Symptoms:

The Admiral washer is making a loud grinding sound specifically during the agitation cycle. The washer may still fill and drain normally, but the grinding noise is prominent when the agitator is moving back and forth.

Possible Causes:

Worn or damaged motor coupling.
Failing gearcase.
Worn or damaged agitator assembly.
Foreign object caught in the agitator or between the tubs.
Defective drive pulley.
Internal motor bearing failure.

Solution:

1

Unplug the washer from the 120V AC outlet. Disconnect power before proceeding.
2

Remove the agitator. Inspect for damage or obstructions. Remove any debris.
3

Inspect the motor coupling (between the motor and gearcase) for wear or breakage. Replace if damaged.
4

Access the gearcase (usually from the bottom of the washer). Inspect for leaks or signs of failure. Check the gearcase oil if accessible.
5

Check the drive pulley and belt for wear and proper tension. Replace if necessary.
6

If the problem persists, suspect a failing motor. Use a multimeter to check motor windings for continuity. Typical resistance readings vary, refer to the service manual. A shorted or open winding indicates motor failure.
7

If the motor appears functional electrically, but still makes noise, the internal bearings may be failing. Replacement of the motor is typically required.

Safety Warning:

Lock Out/Tag Out (LOTO) the washer before performing any repairs. High voltage is present when the washer is plugged in. Disconnect power at the breaker panel to ensure safety.

Prevention:

Periodically inspect the agitator for wear and damage. Avoid overloading the washer with excessive laundry. Use the appropriate amount of detergent to prevent excessive suds, which can strain the motor and gearcase.

Expert Tip:

Many Admiral washers have a diagnostic mode. Consult the service manual for the specific sequence, but often involves pressing a combination of buttons (e.g., START/PAUSE, then POWER within 5 seconds) to enter the service mode and display error codes. This can pinpoint the failing component more accurately.

Frequently Asked Questions

•How do I access the motor coupling on this model?

Typically, you need to remove the cabinet to access the motor and coupling. Refer to the service manual for specific instructions on cabinet removal for your Admiral washer model. Be careful of sharp edges.

•What is the typical lifespan of a washer gearcase?

A washer gearcase can last anywhere from 5 to 10 years, depending on usage and maintenance. Overloading the washer or using excessive detergent can shorten its lifespan.

•Where can I find a replacement motor coupling for my Admiral washer?

Replacement motor couplings are available from appliance parts retailers online, or from local appliance parts stores. Be sure to have your washer's model number handy to ensure you get the correct part.

Admiral Washer Motor Grinding Sound During Agitation: Troubleshooting

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I access the motor coupling on this model?

•What is the typical lifespan of a washer gearcase?

•Where can I find a replacement motor coupling for my Admiral washer?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: