Official Bosch dishwasher parts

Troubleshooting a Bosch dishwasher drain problem

If water remains in your Bosch dishwasher after the cycle ends, check the kitchen sink drain to make sure it's not clogged.

If your dishwasher has an air gap next to the sink faucet—not all dishwashers do—check for water stains or water trails coming from the vent holes in the air gap cap. Water coming out of the air gap vent holes indicates a clogged air gap. Clear the air gap if it’s clogged.

If the kitchen sink drain and air gap are clear, check the drain hose for clogs and clear the drain hose if it’s clogged.

The drain hose on many Bosch dishwashers includes a check valve that prevents water from backing up into the dishwasher sump through the drain hose. Examine the check valve for debris that may be preventing the check valve from closing and clear any debris from the check valve.

A failed drain pump or bad electronic control board can prevent the dishwasher from draining. If the drain pump doesn’t run or doesn’t pump out water when running, replace the drain pump. If the electronic control board doesn’t send current to the drain pump during the drain portion of the cycle, replace the electronic control board.

Common replacement parts for Bosch dishwashers

• Detergent dispenser
• Drain pump
• Electronic control board
• Heater assembly
• Door latch
• Door switch
• Door seal

Find the replacement parts you need on the Bosch dishwasher parts diagram for your model.