Dishwasher - Not Draining

If your dishwasher is not draining, you will typically see an excess amount of water in the bottom of the tub. If excessive water is remaining in the bottom of the dishwasher, there are a few things that can cause this issue.

 

Check for a blockage:

  • On models with a Fine and Ultra Fine filter, remove and check the Fine and Ultra Fine filters in the bottom of the dishwasher. For more information, visit: Dishwasher - How to Clean Fine and Ultra Fine Filters.

    • On models without an Ultra Fine filter at the bottom of the tub, 1 to 2 cups of clean water covering the bottom of the tub is normal.

    • On models with an Ultra Fine filter, water in the sump (filter area) is normal but the water should not cover the bottom of the tub.

  • Make sure there is not any paper or large object covering or blocking the sump area in the rear of the tub. Clear out any large pieces of food from the bottom of the dishwasher like noodles, lettuce, bones, etc.

  • Check the drain hose where it connects below the sink for a blockage or a kink in the hose. New dishwashers come with a white corrugated drain hose which should be used. Re-using old, worn out drain hoses may promote kinking or a blockage.

  • Make sure the kitchen sink drain is not clogged. If a disposer is installed, run the disposer to clear the drain system. Do not put your hands into the garbage disposer to check it as a serious injury could occur. You should always turn on your garbage disposer prior to running the dishwasher to clean out any food or debris within the drain system.

  • If an air gap is installed with the dishwasher drain plumbing, remove the cap on the air gap and clean out any build-up of debris. Clearing the air gap will allow water to flow better as the dishwasher drains. For more information, see Dishwasher - Cleaning Your Air Gap.

  • If a disposer was recently installed or replaced, make sure the drain plug inside the disposer was removed. Instructions for removing the drain plug are in the disposer's installation instructions.

  • Do not use drain cleaner in the dishwasher. For more information, see: Dishwasher - Use of Drain Cleaner.

 

Detergent type and amount:

 

Installation:

  • If an air gap is not used with the installation of the drain hose, the dishwasher drain hose must contain a high drain loop for the dishwasher to be able to drain correctly. The high drain loop must be attached to the underside of the counter and attached to the sink at a specific height. Measure the height from the floor to the highest point of the drain hose and make sure the height matches what is in the installation instructions.

  • If a disposer was recently installed, make sure the drain plug inside the disposer was removed. Instructions for removing the drain plug are located in the disposer's installation instructions.

 

Portable dishwashers that are not draining and are connected using the unicouple will need service. If they are connected using a drain hose, then these suggestions apply.

 

If the above suggestions do not resolve the draining issue with your built-in or portable dishwasher, service will be needed. For service, please schedule an appointment with GE Appliances Factory Service.