Hotpoint Washer Screeching During Spin Cycle:... | appliancefaults.com

Technical Background:

The washer's MCU (Microcontroller Unit) controls the motor speed and drain pump operation during the spin cycle. Voltage is applied to the motor windings based on sensor feedback (speed, load, etc.). The drain pump evacuates water before and during the spin cycle. A problem in any of these areas, or the mechanical components they control, can create unusual noises. Voltage paths to consider are 120V AC to the motor and pump.

Symptoms:

US homeowner reports a loud screeching noise coming from their Hotpoint washing machine specifically during the high-speed spin cycle. The noise is described as high-pitched and concerning.

Possible Causes:

Worn drum support bearings.
Damaged or worn drive belt.
Foreign object lodged between the inner and outer tubs.
Failing motor coupling or direct drive motor.
Worn or glazed pump impeller.

Solution:

1

Unplug the washer from the 120V AC outlet. Ensure the power cord is not damaged.
2

Access the washer's cabinet (usually rear panel). Use a 1/4-inch nut driver to remove the screws.
3

Inspect the drive belt for signs of wear, cracking, or looseness. Replace if necessary. A new belt should have proper tension.
4

Manually rotate the drum. Listen for any grinding or scraping noises. This can indicate worn drum support bearings. Replacing bearings requires specialized tools and is best left to a licensed technician.
5

Check for any obstructions between the inner and outer tubs. This may require removing the inner tub (requires spanner wrench) to access the area.
6

Inspect the motor coupling (if applicable) for damage or wear. Replace if necessary.
7

Examine the drain pump. Disconnect hoses and inspect the impeller for damage or obstructions.

Safety Warning:

Always disconnect power to the appliance before performing any repairs (LOTO - Lock Out, Tag Out). High voltage is present inside the appliance. Wear appropriate safety gear.

Prevention:

Regularly inspect the washer's hoses for leaks. Avoid overloading the washer. Clean the lint filter after each load. Periodically check the drain pump filter for debris.

Expert Tip:

Many Hotpoint washers have a diagnostic mode. Consult the service manual to learn how to enter the diagnostic mode and retrieve error codes. This can pinpoint the source of the screeching noise.

Frequently Asked Questions

•How do I determine if the drum support bearings are bad without special tools?

Listen carefully while manually rotating the drum. A rough grinding noise, especially when the drum is loaded with weight, is a strong indicator. Also, excessive play or movement in the drum assembly can point to bearing failure.

•What type of grease is recommended for lubricating the motor coupling?

A high-temperature, lithium-based grease is typically recommended for lubricating motor couplings. Avoid using petroleum-based greases, as they can degrade rubber components.

•How much should the drive belt deflect when properly tensioned?

As a general rule, a properly tensioned drive belt should deflect approximately 1/4 to 1/2 inch when moderate pressure is applied midway between the pulleys. Consult the service manual for the specific deflection measurement.

Hotpoint Washer Screeching During Spin Cycle: Troubleshooting & Repair

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I determine if the drum support bearings are bad without special tools?

•What type of grease is recommended for lubricating the motor coupling?

•How much should the drive belt deflect when properly tensioned?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: