Hotpoint Washer Loud Roaring Noise: Troubleshooting and... | appliancefaults.com

Technical Background:

The MCU (Main Control Unit) controls all washer functions including motor speed and valve operation based on sensor feedback. Voltage (120V AC) is supplied to the motor and other components via relays controlled by the MCU. Failures within the mechanical components manifest as excessive noise. Drum bearing failure can be caused by water leaks migrating past the tub seal.

Symptoms:

The homeowner reports a loud roaring noise, similar to a jet engine, emanating from the Hotpoint washing machine during operation, especially during the spin cycle.

Possible Causes:

Worn or damaged drum bearings.
Foreign object lodged in the pump.
Failing drive motor bearings.
Worn or damaged tub seal.

Solution:

1

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

Inspect the pump: Remove the front service panel (using a 1/4-inch nut driver) and check the pump for obstructions. Clear any debris.
3

Check drum bearings: Manually rotate the inner tub. If it feels rough or makes noise, the drum bearings may be worn. This often requires disassembly of the entire machine.
4

Inspect motor bearings: Access the motor (usually from the rear of the machine). Manually rotate the motor shaft. A rough or noisy shaft indicates bearing failure.
5

Tub Seal Check: Look for water stains or rust around the tub seal. If present, the seal is likely compromised.
6

Resistance Test: Use a multimeter to check the resistance of the motor windings. Consult the service manual for correct values. Open or shorted windings indicate a faulty motor.
7

Check Voltage: Use a multimeter to confirm 120V AC to the motor during the spin cycle. Insufficient voltage could indicate a problem with the MCU or wiring.

Safety Warning:

Always disconnect power (Lock Out Tag Out - LOTO) before servicing. High voltage (120V AC) is present in the machine. Use caution when working with electrical components.

Prevention:

Regularly inspect and clean the pump filter. Avoid overloading the washer. Use the correct type and amount of detergent. Check hoses for leaks.

Expert Tip:

Many Hotpoint washers have a diagnostic mode. Consult the service manual to activate it. It can display error codes and run component tests to pinpoint the faulty part. Often involves pressing a specific sequence of buttons (e.g., Power, then Start/Pause within 5 seconds, repeated 3 times).

Frequently Asked Questions

•What is the resistance range I should expect to see on the motor windings?

Consult the specific service manual for your Hotpoint model. Typical values are between 3-10 ohms for the stator windings, but this varies.

•How do I remove the inner wash basket to inspect the bearings?

First, disconnect power and water. You typically need to remove the agitator or impeller, then the retaining nut (often a left-hand thread). A specialized spanner wrench may be required. Then, the entire inner tub assembly can be lifted out.

•Where can I find the service manual for my specific Hotpoint washer model?

Search online using the full model number, often located inside the door or on the rear panel. Sites like AppliancePartsPros.com or Sears Parts Direct often have downloadable manuals, or you can purchase a physical copy from authorized dealers.

Hotpoint Washer Loud Roaring Noise: Troubleshooting and Repair Guide

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•What is the resistance range I should expect to see on the motor windings?

•How do I remove the inner wash basket to inspect the bearings?

•Where can I find the service manual for my specific Hotpoint washer model?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: