How to Repair the Drain for a Bosch SHX46A Dishwasher

Inspect the drain. A bottle cap or debris may be clogging the drain. Drain filters should be inspected on a regular basis. It is normal for a small amount of water to remain in the bottom of your Bosch dishwasher after it has run its cycle. If a lot of water remains, the drain may be blocked. Remove filters and rinse well to remove any clogged dirt or debris. The drain is below the filters. Make sure the drain is clear of blockage. Check the valve and drain hose for obstructions or kinks.

Remove the filter screen at the bottom of the unit. Unscrew the plastic cover over the impeller pump. Inspect for debris or a small glass chip that may be preventing the pump from rotating and removing waste water.

Disconnect the electric power to any appliance before attempting do-it-yourself repairs. Remove the toe panel and check around the base of the appliance for water. If no water is present, you can pull out the dishwasher to remove the side panel to access the water fill assembly. Locate the flood switch, which activates the drain pump. The switch is located at the base of the dishwasher. The flood switch is a orange rod that should freely move up and down. When the switch is in the up position it activates the drain pump. If not working properly, the switch may need to be replaced.

Inspect the drain line that leads from the dishwasher to the plumbing drain. It is made of clear plastic. Use a flashlight check the line for blockage that may be preventing the machine from draining. If the drain line is clogged, disconnect the line and blow out the line to remove the obstruction.