Speed Queen Washing Machine Slow Spin Cycle:... | appliancefaults.com

Technical Background:

The MCU (Motor Control Unit) controls the motor speed and direction during the spin cycle. It receives signals from the lid switch, water level sensor, and timer to determine the appropriate spin speed. Voltage paths to the motor and drain pump must be intact for proper operation. The MCU monitors feedback from the motor to ensure proper speed and torque.

Symptoms:

The homeowner observes that the Speed Queen washing machine takes an excessively long time to complete the spin cycle, leaving clothes very wet.

Possible Causes:

Worn or loose drive belt
Clogged drain pump or drain hose
Defective motor or motor capacitor
Faulty lid switch or door lock mechanism
Obstruction in the tub or pump
Malfunctioning control board or motor control unit (MCU)

Solution:

1

Unplug the washing machine from the 120V AC outlet.
2

Remove the cabinet to access the drive belt. Inspect the belt for wear or looseness. Replace if necessary. Use a 5/16-inch nut driver for panel screws.
3

Check the drain pump and drain hose for any clogs. Remove any debris. Use pliers to disconnect hoses.
4

Test the motor windings for continuity using a multimeter. If windings are open, replace the motor.
5

Verify the lid switch or door lock mechanism is functioning correctly. Replace if faulty. Check for 120V AC at the switch when activated.
6

Inspect the control board for any visible damage or burned components. If damaged, replace the control board.
7

Check the motor capacitor. Disconnect power, discharge the capacitor, and test with a multimeter. Replace if out of spec.

Safety Warning:

Disconnect power before working on the appliance (LOTO - Lock Out Tag Out). High voltage is present in the control panel and motor circuit. Use caution when testing electrical components.

Prevention:

Regularly inspect and clean the drain pump filter to prevent clogs. Avoid overloading the washing machine. Check and replace worn belts every 2-3 years.

Expert Tip:

Speed Queen washers have a service mode for diagnostics. Consult the service manual for the specific key sequence to enter service mode. This will allow you to run diagnostic tests on various components.

Frequently Asked Questions

•How do I access the drain pump filter on my Speed Queen washer?

The drain pump filter is usually located behind a small access panel at the bottom front of the machine. You'll typically need a flathead screwdriver to open it. Be prepared for some water to spill out.

•What type of drive belt do I need for my Speed Queen washer model?

The drive belt type varies by model number. Consult the parts diagram for your specific model number, available on the Speed Queen website or from appliance parts retailers. Ensure you order the correct belt size and type.

•How do I test the motor capacitor with a multimeter?

First, disconnect power to the washer and discharge the capacitor using a resistor. Set your multimeter to measure capacitance (microfarads). Connect the multimeter probes to the capacitor terminals. The reading should be within the specified range on the capacitor label. If it reads zero or is significantly out of range, the capacitor is likely faulty.

Speed Queen Washing Machine Slow Spin Cycle: Troubleshooting Guide

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I access the drain pump filter on my Speed Queen washer?

•What type of drive belt do I need for my Speed Queen washer model?

•How do I test the motor capacitor with a multimeter?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: