How To Fix Dishwasher Not Draining

One of the most common issues that a dishwasher can develop is a puddle of water in the bottom of the appliance after running through a cycle.

When this happens, you'll likely notice that the dishes are spotted with hard, spotty food debris as well.

The good news is that this is an issue that you can fix in about 15 minutes in most cases.

Why Does Water Form in the Bottom?

Dishwashers are designed to drain water out of the appliance and into your home's primary drain.

It's usually connected to your kitchen sink plumbing, but sometimes there is a dedicated drain connection for the dishwasher as well.

There is water in the bottom of the dishwasher because the mechanism of draining the water away has become blocked or isn't working in some way.

This usually occurs because of a food blockage within the screen.

Sometimes food can get through the central mechanism where the lower arm of the dishwasher is located and it gets caught in the draining area.

You'll first need to remove the lower tray from the dishwasher.

The spinning arm will generally just pull out.

Now located the pull tab in the center and pull that either toward you or away from you depending on its location.

As you are doing this, you'll need to turn the joint.

It will only turn one way. This will unlock the screen and you'll be able to pull it out.

There's usually some hair and other debris that has stuck to several components of the screen.

Now that it's out, you might as well clean it!

Where the screen drains into the primary plumbing is where you'll need to check for a blockage.

It's usually visible and you just pull it out.

The Drain Is Clear, But the Dishwasher Is Not Draining

This can happen when your dishwasher is connected to the plumbing underneath the kitchen sink.

The plumbing installed for the drain is usually quite small, about ¼ inch in diameter in many installations.

This small plumbing is then connected to a T-joint on the sink's trap, which restricts water flow even further.

Food can get trapped in this joint and cause the water to back up into the dishwasher.

It doesn't usually overflow, however, because there is enough water pressure to force some of the water through the plumbing.

You'll need to get a pail to fix this issue, however, because you'll need to disconnect the dishwasher plumbing from the kitchen sink.

It's usually connected with a clamp that you unscrew.

Then just pull off the plumbing and let it drain into your pail.

There can be a lot of water here, so be prepared.

Then just pull out the blockage.

It may be in the pipe or in the T-joint.

If you pull the plumbing and there's no water coming out and your kitchen sink drains normally, then you'll need to snake the pipe itself to repair the dishwasher.

One of these three steps usually fixes a dishwasher that is not draining.

Try them today and get the results you need.

Posted on Nov 02, 2014


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