Speed Queen Washer Not Draining: Troubleshooting Guide -... | appliancefaults.com

Technical Background:

The MCU (Main Control Unit) controls the drain pump based on signals from the water level (pressure) switch and timer settings. The MCU sends 120V AC to the drain pump motor. A failure in any of these components can prevent the drain pump from activating.

Symptoms:

The Speed Queen washer completes the wash cycle, but water remains in the drum. The washer may or may not display an error code, but the clothes are soaked, and the cycle does not progress to the spin cycle properly.

Possible Causes:

Clogged drain pump filter
Kinked or blocked drain hose
Faulty drain pump motor
Defective water level pressure switch
Malfunctioning MCU/timer
Air lock in the drain system

Solution:

1

Disconnect the washer from the 120V AC outlet and turn off the water supply valves.
2

Inspect the drain hose. Remove it from both the washer and the standpipe. Clear any visible obstructions. Ensure there are no sharp bends or kinks.
3

Locate the drain pump. On many Speed Queen models, you can access it by removing the front panel. You may need a 1/4-inch nut driver for this.
4

Clean the drain pump filter. Remove any lint, coins, or other debris. Reassemble the filter.
5

Test the drain pump motor for continuity with a multimeter. If there's no continuity, replace the drain pump motor.
6

During the drain cycle, check for 120V AC at the drain pump motor terminals using a multimeter. If voltage is present and the pump isn't running, replace the pump.
7

Check the pressure switch hose for any cracks, kinks, or clogs. Clean or replace as necessary.

Safety Warning:

Disconnect power to the appliance before performing any repairs. Use caution when working with electrical components. High voltage is present when the unit is powered. Lock Out/Tag Out (LOTO) procedures should be followed.

Prevention:

Regularly clean the drain pump filter (every 3-6 months). Avoid overloading the washer, as this can contribute to lint buildup. Use the appropriate amount of HE detergent. Periodically inspect the drain hose for kinks or damage.

Expert Tip:

Some Speed Queen models have a service mode. Consult the technical service manual for your specific model to access diagnostic tests, including drain pump activation. On some models, you can enter service mode by pressing a specific sequence of buttons (e.g., Start/Pause, then Cycle Select). This can help isolate the drain pump issue.

Frequently Asked Questions

•How do I access the drain pump on my specific Speed Queen model?

Consult the service manual for your specific model. Typically, you'll need to remove the front or rear panel, often held in place by screws or clips. Some models may require tilting the washer back to access the pump.

•What if I'm getting voltage to the drain pump, but it's still not working?

If you're measuring approximately 120V AC at the drain pump terminals during the drain cycle, but the pump isn't running, the drain pump motor is likely faulty and needs to be replaced. The motor windings could be open or the impeller could be seized.

•Where can I find a replacement drain pump for my Speed Queen washer?

You can find replacement drain pumps at appliance parts retailers online or at local appliance parts stores. Be sure to have your washer's model number handy to ensure you order the correct part.

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I access the drain pump on my specific Speed Queen model?

•What if I'm getting voltage to the drain pump, but it's still not working?

•Where can I find a replacement drain pump for my Speed Queen washer?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: