Bosch Dishwasher Error Code E24 / E25 - Drain Sump Pump Blockage

Low Severity

Error code E24 or E25 indicates that the dishwasher cannot evacuate wastewater out of the sump within the allowed cycle time.

Appliance: Bosch Dishwashers

Estimated Time: 10-15 minutes

Tools Required: Sponge, flashlight, protective gloves

⚠ Common Symptoms & Observations

Water pooled in the bottom of the tub under the metal filter screen; cycle stops 2-3 minutes in with an audible hum; dishes remain unwashed.

🔍 Root Causes for Code E24 / E25

Debris, broken glass, or seeds trapped around the white pump impeller cover
missing impeller cover
garbage disposal knock-out plug not removed on a new installation
kinked drain hose under the sink.

🔧 Step-by-Step DIY Troubleshooting & Fix Guide

Remove the bottom dish rack and twist the cylindrical mesh filter counter-clockwise to remove.

Sponge out any standing water inside the sump well until dry.

Unclip the white plastic pump impeller cover (lift and pull towards you).

Inspect the drain pump impeller using a flashlight. Carefully remove any fruit pits, glass shards, or toothpicks.

Snap the white pump cover back in until you hear a sharp CLICK (the washer will not drain if this cover is unclicked!). Reinstall filters.

🔄 Master Reset Procedure for Bosch

Press and hold 'Start' button for 3 seconds to cancel the cycle and drain.

Technician Tip: If the error code reappears immediately after a hard reset, the control board has detected an active electrical open circuit or failed component that requires physical inspection.