Speed Queen Washer Whistling Noise During Fill:... | appliancefaults.com

Technical Background:

The MCU (Main Control Unit) sends a 120V AC signal to the water inlet valve solenoid. This opens the valve, allowing water to flow into the tub. The valve is designed to modulate the water flow. If the valve is partially obstructed or damaged, it can cause the water to vibrate at a certain frequency, resulting in a whistling sound.

Symptoms:

The homeowner observes a distinct whistling noise emanating from the Speed Queen washing machine specifically during the water fill cycle.

Possible Causes:

Partially closed inlet valve
Debris or mineral buildup in the water inlet valve
Kinked or restricted water supply hose
High water pressure causing valve oscillation
Faulty water inlet valve diaphragm
Air trapped in the water line

Solution:

1

Turn off the water supply to the washer at the wall. Unplug the power cord from the outlet.
2

Disconnect the water supply hoses from the back of the washer using pliers or channel locks.
3

Inspect the inlet valve screens for debris or mineral buildup. Clean with a small brush or replace as needed. Check for scale.
4

Check the water supply hoses for kinks or obstructions. Replace the hoses if they are deteriorated or damaged.
5

Reconnect the water supply hoses and slowly turn the water supply back on. Check for leaks.
6

Plug the power cord back into the outlet. Start a test cycle and monitor the fill cycle for the whistling noise. If the noise persists, use a multimeter to check for 120V AC at the inlet valve during the fill cycle. If voltage is present and the noise persists, replace the water inlet valve. Remove the top of the washing machine using a 1/4-inch nut driver to access the valve.
7

Verify proper water pressure using a water pressure gauge connected to the water supply. Normal residential water pressure is between 40-60 PSI. Install a pressure regulator if needed.

Safety Warning:

Always disconnect power to the appliance at the breaker panel before performing any repairs. Water and electricity are a dangerous combination. Lock Out/Tag Out (LOTO) procedures must be followed.

Prevention:

Install a water filter on the incoming water line to prevent debris from entering the water inlet valve. Periodically inspect and clean the inlet valve screens.

Expert Tip:

To test the water inlet valve without running a full cycle, some Speed Queen models have a service mode. Consult the technical service manual for the specific procedure. Typically, this involves pressing a sequence of buttons to activate diagnostic tests. One test should activate the water inlet valve independently.

Frequently Asked Questions

•What type of water filter should I install on the water line?

A sediment filter is best for preventing debris from entering the water inlet valve. You can also consider a whole-house filter for added protection.

•How often should I inspect and clean the inlet valve screens?

It is recommended to inspect and clean the inlet valve screens every 6 months, or more frequently if you have hard water.

•What is the part number for a replacement water inlet valve for my Speed Queen washer?

The part number for the water inlet valve depends on your specific Speed Queen model number. Refer to your owner's manual or contact a Speed Queen authorized parts distributor with your model number to obtain the correct part.

Speed Queen Washer Whistling Noise During Fill: Troubleshooting Guide

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•What type of water filter should I install on the water line?

•How often should I inspect and clean the inlet valve screens?

•What is the part number for a replacement water inlet valve for my Speed Queen washer?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: