Tip & How-To about Dishwashers

How to repair or fix a Dishwasher if it doesn't drain

Dishwasher Doesn’t Drain Following a cycle, a small pool of clean water inside the tub is normal. An excessive amount of water means the pump isn’t pumping water out properly, the drain hose isn’t carrying it to the drain pipe, or the house’s drain lines are backed up.
If dirty water spews from the air gap, the drain line is kinked or clogged. (If you’ve recently installed a garbage disposer, be sure the knockout plug for the dishwasher was removed when the connection was made; see your disposer instructions.)
1) Remove the cover from the air gap at the top of the sink (usually a short chrome domed cylinder that sits at the back of the sink), and, using a stiff wire, clean it out. Also check the entire length of the drain hose for kinks or blockages, especially at the drain connection to the disposer or drain line.
2) Once the dishwasher is cool, shut off the power to it, and—if your dishwasher is made to allow this—remove the strainer, located under the bottom spray arm at the base of the cabinet (see illustration). Unscrew the hubcap, lift the spray arm off, and remove any clips that hold the strainer to get it out. Scrub it clean with a brush, then replace it.
3) Determine whether the sink trap or house drain line is clogged.
4) If the dishwasher still doesn’t drain properly, the drain hose may be clogged or the drain valve may need replacement. You can check the drain hose for obstructions, but this sometimes involves pulling the dishwasher out from under your counter to access the hose, disconnecting the hose at both ends, and flushing it out with a faucet or garden hose or replacing it with a new hose.

Posted by on

Dishwashers Logo

Related Topics:

Related Questions:

1 Answer

How does water actually get into the tub of a GE Model GSD2200G00WW dishwasher and to clean the overflow area how do you get it out I have cover off, down to rubber, got some stuff out, ? filter


First--Water enters the dishwasher through the water inlet valve which is the plastic electric valve that the house plumbing attaches to. On GE's its usually under the left front corner once you remove the small access panel. Power is applied by the the timer during the fill cycle. Second-- there is no other filter down in the area you are trying to clean. To remove that rubber boot/sump area you would need to un-install the dishwasher and remove the motor pump assembly from underneath. Here are a couple of things to check for poor cleaning. 1---internal water level---should be about 1/2 inch at door front edge. If not, that inlet valve may be partially blocked and need replaced. 2---water temp needs to be at least 120 minimum. If not hot enough it will not dissolve soap. 3--- look closely at all the little holes in the spray arms. Pay close attention to the end holes that are used to spray out water like a jet engine and spin the arms. Any blocked holes need to be cleaned with something like a toothpick. 4--- check dishwasher at cycle end. If tub has excessive amount of water left inside you may have a blocked drain hose from dishwasher to house drain system. Remove and clean. A small amount of water in sump area is normal but none u near door.

May 02, 2015 | GE Dishwashers

1 Answer

dishwasher doesn't drain properly


Hello,

Following a cycle, a small pool of clean water inside the tub is normal. An excessive amount of water means the pump isn't pumping water out properly, the drain hose isn't carrying it to the drain pipe, or the house's drain lines are backed up.
GA_googleFillSlot("HT_Appliances_Dishwashers_Articles_Box_Top_Left_ATF_300x250");
GA_googleCreateDomIframe('google_ads_div_HT_Appliances_Dishwashers_Articles_Box_Top_Left_ATF_300x250' ,'HT_Appliances_Dishwashers_Articles_Box_Top_Left_ATF_300x250');


If dirty water spews from the air gap, the drain line is kinked or clogged. (If you've recently installed a garbage disposer, be sure the knockout plug for the dishwasher was removed when the connection was made; see your disposer instructions.)
1) Remove the cover from the air gap at the top of the sink (usually a short chrome domed cylinder that sits at the back of the sink), and, using a stiff wire, clean it out. Also check the entire length of the drain hose for kinks or blockages, especially at the drain connection to the disposer or drain line.2) Once the dishwasher is cool, shut off the power to it, and-if your dishwasher is made to allow this-remove the strainer, located under the bottom spray arm at the base of the cabinet (see illustration). dishwasher_er1.gifUnscrew the hubcap, lift the spray arm off, and remove any clips that hold the strainer to get it out. Scrub it clean with a brush, then replace it.
3) Determine whether the sink trap or house drain line is clogged.
4) If the dishwasher still doesn't drain properly, the drain hose may be clogged or the drain valve may need replacement. You can check the drain hose for obstructions, but this sometimes involves pulling the dishwasher out from under your counter to access the hose, disconnecting the hose at both ends, and flushing it out with a faucet or garden hose or replacing it with a new hose.

Thanks for using fixya.

Nov 02, 2010 | GE 24 in. GSD4320Z Built-in Dishwasher

1 Answer

stops mid cycle


hello,

Following a cycle, a small pool of clean water inside the tub is normal. An excessive amount of water means the pump isn't pumping water out properly, the drain hose isn't carrying it to the drain pipe, or the house's drain lines are backed up.
GA_googleFillSlot("HT_Appliances_Dishwashers_Articles_Box_Top_Left_ATF_300x250");
GA_googleCreateDomIframe('google_ads_div_HT_Appliances_Dishwashers_Articles_Box_Top_Left_ATF_300x250' ,'HT_Appliances_Dishwashers_Articles_Box_Top_Left_ATF_300x250');


If dirty water spews from the air gap, the drain line is kinked or clogged. (If you've recently installed a garbage disposer, be sure the knockout plug for the dishwasher was removed when the connection was made; see your disposer instructions.)
1) Remove the cover from the air gap at the top of the sink (usually a short chrome domed cylinder that sits at the back of the sink), and, using a stiff wire, clean it out. Also check the entire length of the drain hose for kinks or blockages, especially at the drain connection to the disposer or drain line.
2) Once the dishwasher is cool, shut off the power to it, and-if your dishwasher is made to allow this-remove the strainer, located under the bottom spray arm at the base of the cabinet (see illustration). dishwasher_er1.gifUnscrew the hubcap, lift the spray arm off, and remove any clips that hold the strainer to get it out. Scrub it clean with a brush, then replace it.
3) Determine whether the sink trap or house drain line is clogged.
4) If the dishwasher still doesn't drain properly, the drain hose may be clogged or the drain valve may need replacement. You can check the drain hose for obstructions, but this sometimes involves pulling the dishwasher out from under your counter to access the hose, disconnecting the hose at both ends, and flushing it out with a faucet or garden hose or replacing it with a new hose.

Thanks.

Nov 02, 2010 | Belling 24 in. IDW603 Built-in Dishwasher

1 Answer

DOES NOT DRAIN ALL THE WATER OUT OF THE INSIDE. DISHES ARE STILL NOT DRY


Hi


Thanks for using FixYa. Dishwasher not draining properly or not draining at all issues can arise due to different reasons. Usually, these issues are related to kinked hoses, knocked out disposer unit (if connected with the dishwasher drain hose) & clogged drain pump & filter. Also note that dishwashers do not drain completely after a finished cycle and this is normal. Dishwashers are designed to leave some water in the unit to ensure that the heating element doesn’t overheat. If you suddenly begin to experience a large amount of water being retained in your dishwasher, you have a problem. Some of the most common reasons include that the drain hose isn’t working properly, the drain pump isn’t working correctly, or possibly there is a plumbing problem in your home’s drain lines. First check whether the drain is not clogged or blocked and the line is not kinked. Check all the hoses for blockages & also clean the air gap. If you have checked the drain hose and can’t locate the problem, then it is an issue with the drain pump of the dishwasher. Please do accept the solution if the issue is resolved or post a comment for further assistance.


Thanks
Rylee

Sep 12, 2010 | LG 24" XL Tall Tub Built-In Dishwasher -...

1 Answer

I have a small dishwasher it goes through all cycles water won't drain out of the bottom


Hi


Thanks for using FixYa. Dishwasher not draining properly or not draining at all issues can arise due to different reasons. Usually, these issues are related to kinked hoses, knocked out disposer unit (if connected with the dishwasher drain hose) & clogged drain pump & filter. Also note that dishwashers do not drain completely after a finished cycle and this is normal. Dishwashers are designed to leave some water in the unit to ensure that the heating element doesn’t overheat. If you suddenly begin to experience a large amount of water being retained in your dishwasher, you have a problem. Some of the most common reasons include that the drain hose isn’t working properly, the drain pump isn’t working correctly, or possibly there is a plumbing problem in your home’s drain lines. First check whether the drain is not clogged or blocked and the line is not kinked. Check all the hoses for blockages & also clean the air gap. If you have checked the drain hose and can’t locate the problem, then it is an issue with the drain pump of the dishwasher. Please do rate the solution if the issue is resolved or post a comment for further assistance.


Thanks
Rylee

Sep 07, 2010 | Maytag 24 in. MDB4000 Built-in Dishwasher

Not finding what you are looking for?

276 people viewed this tip

Ask a Question

Usually answered in minutes!

Top Dishwashers Experts

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

yadayada
yadayada

Level 3 Expert

80339 Answers

Brad Brown

Level 3 Expert

17322 Answers

Are you a Dishwasher Expert? Answer questions, earn points and help others

Answer questions

Loading...