Why a Washing Machine Will Not Drain Properly

A washing machine that fails to drain properly can disrupt household routines and lead to costly repairs if not addressed promptly. Several factors can contribute to this issue, ranging from simple blockages to mechanical failures. Understanding these causes can help diagnose and resolve the problem efficiently.

One common reason for improper drainage is a clogged drain hose or pump filter. Over time, lint, small clothing items, or debris can accumulate in the hose or filter, obstructing water flow. Regularly inspecting and cleaning the pump filter, typically located at the front or bottom of the machine, can prevent such blockages. Similarly, ensuring the drain hose is free of kinks or obstructions is essential for proper water expulsion.

Another frequent culprit is a malfunctioning drain pump. The pump is responsible for pushing water out of the machine during the drain cycle. If it becomes worn or damaged, it may fail to operate effectively, leaving water in the drum. Unusual noises, such as grinding or humming, during the drain cycle may indicate a failing pump, which often requires professional repair or replacement.

Issues with the machine’s control board or timer can also prevent proper draining. These components regulate the washing machine’s cycles, including drainage. A malfunctioning control board may fail to signal the pump to activate, causing water to remain in the drum. Diagnosing electrical issues typically requires technical expertise, as it involves testing the machine’s circuitry.

An overloaded or unbalanced load can also disrupt the drainage process. Excessive laundry or heavy items can strain the machine, preventing it from spinning and draining efficiently. To avoid this, adhere to the manufacturer’s load capacity guidelines and distribute items evenly in the drum.

Lastly, external factors, such as a clogged household drain or improper installation, may impede drainage. If the washing machine’s drain pipe is connected to a blocked household drain, water cannot flow out effectively. Ensuring the drain system is clear and the machine is installed at the correct height can mitigate this issue.

A washing machine that does not drain properly may result from clogs, pump failure, control board issues, overloading, or external drain problems. Regular maintenance, such as cleaning filters and checking hoses, can prevent many issues. For complex problems, consulting a professional technician is advisable to ensure safe and effective repairs.

Not Draining Properly

Drainage problems can range from being as simple as a clog in the drain hose to needing to replace a pump. But one thing is certain, when you have a problem with draining you’ll be very aware . . . the mess on the floor may be your first and only clue!

• Drain Hose

Many times a clogged drain hose is the reason your washer isn’t draining properly. Remove the hose and visually inspect it for clogs. A garden hose can be used to flush any stubborn blockages from the hose.

Here are some other things to look for:

Check the drain hose for kinks.

Check any lint filters that may be in or on the drain hose.

Are you having problems with the home’s drain system?

The drain hose should be above the level of water in the drain tub.

Is the standpipe a minimum of 1-1/4″ in diameter?

Is the drain hose sealed into the standpipe? If this is the case, back-siphoning can occur. It should never be sealed.

The standpipe should be less than 96″ in height.

• Drain Pump

If you suspect that your drain pump is jammed, you’ll need to drain your tub then disconnect and inspect the hoses for foreign objects. Don’t forget to check the pump inlets. You may need to remove the pump from the washer in order to get a good look.

If you are having problems with your pump, there’s a chance that it may have locked up and seized. The motor will continue to run and attempt to turn the pump. If the pump is belt-driven, the belt will burn through or break, there is even a chance that the pulley could break. Things can go from bad to worse if the motor continues to run with tension on the belt, which can cause the motor to seize. Another possible issue could be that the bearings seized on the pump, or it may have become jammed by a pen, coin or sock. It’s also possible that the impeller blades have broken. In most cases, a new pump will fix the problem.

• Foreign Objects

If items such as socks, pens and coins get wedged between the basket and the tub, or become lodged in the pump, the washer’s ability to drain properly will be greatly reduced and even can come to a full stop. You’ll need to open the cabinet to gain access so that you can search for any obstructions.

• Detergent

If too much detergent is used there will be far too many suds. Too many suds will prevent the washer from draining in a timely manner.