6 Reasons Your Dishwasher Won’t Drain

6 Reasons Your Dishwasher Won’t Drain

The dishwasher is a convenient and easy way to clean your dishes, but when it suddenly does drain it can be a huge inconvenience. Dishwasher issues like this are quite common, and there are many reasons why they occur. Some of the reasons why your dishwasher might not be functioning properly can be explored and fixed by you if you are handy, or you may want to call a professional repair person to do it for you. To fix a dishwasher, it is, of course, imperative to find the origin of the problem. If you have ever stood in your kitchen and asked yourself “Why won’t my dishwasher drain?”, here are some potential reasons why:

6 Reasons Your Dishwasher Won’t Drain

1. Check the Filter

The filter in the dishwasher ensures that food and residue are filtered out and does not redeposit during the washing process. Sometimes food, or even labels from jars or boxes, can become clogged in the filter. When this happens, the dishwasher will not function properly and cannot clean the dishes as effectively. The filter can easily be cleaned by taking a fork or a paper towel and picking out any debris; you may want to open the filter cage and check inside for more debris to be totally sure you’ve found it all. Most filters can be located at the back of the washer.

6 Reasons Your Dishwasher Won’t Drain

2. Check the Drain Hose

To check the drain hose, disconnect the drain hose from the pump and see if you can blow air through it. If you are unable, this means there is a blockage. You may also want to inspect the pipe that connects to the dishwasher drain hose, as some older dishwashers can experience corrosion. This may be something you want a professional to check because the repair can be complex.

6 Reasons Your Dishwasher Won’t Drain

3. Inspect the Drain Valve

This may not be a step for every homeowner because not all dishwashers have a drain valve. A drain valve’s purpose is to prevent water from draining back into the washer. There is a simple way to check if the valve is functioning correctly; all you do is push on the valve and see if it moves freely. If it moves freely, then it is working fine. If it does not move and appears to be stuck, then you may need a new part. Do your homework and shop around for the most affordable parts as some places can be more expensive than others. Always check the model number of your washer to be sure you buy the proper part.

6 Reasons Your Dishwasher Won’t Drain

4. Check the Motor and Timer

The motor activates the pump which is controlled by a timer that is located on the upper front panel of the dishwasher. Sometimes, if the dishwasher is not draining properly, there is either a lag in the motor and timer, or it needs to be replaced. This may be something you want a handyman to check for you. They can run a test to inspect its functioning.

6 Reasons Your Dishwasher Won’t Drain

5. Check the Garbage Disposal

Did you know that if your garbage disposal is clogged, it can have a negative impact on the dishwasher’s drainage capability? When food builds up in the garbage disposal, it prevents the dishwasher’s water from flowing freely which then creates an issue. Always make sure your garbage disposal is free of food scraps and other debris, so your dishwasher can function at its best.

6 Reasons Your Dishwasher Won’t Drain

6. Other Parts to Inspect

If you have tried all of the above and your dishwasher is still not draining, make sure you inspect these other parts: door switch, electronic control, piston and nut assembly, and pump solenoid. These are all things that unless you are an experienced handyman or professional, you may want to call a professional to inspect for you.

A dishwasher is a helpful appliance in the kitchen; it can clean dishes when you are at work or out running errands, and you can come home to clean plates and cutlery. When it starts to malfunction, such as not draining efficiently, or at all, it can be a huge inconvenience.

The next time you find your dishwasher not draining properly, check the above items. If possible, try to do it yourself to save yourself some money, but when in doubt, always call a professional to help you out.

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