Does this guide apply to your appliance?

Match the brand, device type and complete display code. The same code can mean something different on another product family or market; a series name does not confirm every model in that series.

Model and family references in this record:

iQ100iQ300iQ500iQ700studioLine

Likely causes

  • Foreign debris (such as broken glass, bones, or seeds) jamming the pump impeller
  • Drain pump cover loose, improperly seated, or missing
  • Clogged cylindrical or coarse filter assembly in the tub base
  • Kinked, squashed, or clogged drain hose
  • Blocked sink siphon connection or unremoved siphon spigot knockout plug
  • Worn or defective drain pump motor

What to try

Clean Sump Filter and Clear Drain Pump Impeller

Easy
  1. Turn off the dishwasher and disconnect it from the electrical power supply [2.2.3].
  2. Remove the lower basket and lower spray arm to gain full access to the tub floor.
  3. Turn the cylindrical filter unit counter-clockwise to unlock it, lift the filter assembly out, and rinse the mesh clean under warm tap water.
  4. Scoop or sponge out all standing water remaining in the sump cavity until dry.
  5. Prise off the white pump cover using the handle of a teaspoon or appropriate manual tool, then pull it forward and out.
  6. Carefully inspect the impeller chamber for foreign objects (like glass slivers or fruit stones) and verify the impeller spins freely.
  7. Reinsert the pump cover and press down firmly until it audibly clicks into place (an unlatched cover will trigger E25).
  8. Reinstall the filter system, aligning the markings, lock it into position, and restore power.

This step is marked caution. Stop if you are not qualified to continue.

Source for this check: www.siemens-home.bsh-group.com

Inspect Drain Hose and Sink Siphon Connection

Moderate
  1. Disconnect the dishwasher from mains power and turn off the water supply [2.2.9].
  2. Gently pull the dishwasher out to inspect the waste drain hose, ensuring it is not kinked, crushed, or twisted.
  3. Check where the waste hose attaches beneath the sink spigot/siphon.
  4. Loosen the hose clamp, remove the hose end, and clear any grease or debris accumulated in the sink trap spigot.
  5. If the appliance is newly installed, ensure the knockout blanking plug inside the sink trap spigot was drilled out.
  6. Reattach the drain hose securely with the clamp, slide the unit back, restore power, and run a test drain cycle.

Source for this check: www.siemens-home.bsh-group.com

The code returned or the check did not help?

Avoid repeated resets and do not select a replacement part from the code alone. Record the exact code, full model number, when it appeared, and the checks you tried with their results. Share these details with the manufacturer or service technician.

Disconnecting power does not establish that internal components are safe to touch. This guide does not authorize opening electrical components or bypassing safety devices.

Related error codes

Siemens E16Siemens dishwasher E16: filling-system or water-inlet fault Siemens E18Siemens Dishwasher E18: Water-Inlet Fault Siemens E20Siemens Dishwasher Error Code E20: Circulation Pump or Rinsing Circuit Fault Bosch E09Troubleshooting Bosch Dishwasher Error Code E09 (Heating Circuit Failure) Bosch E12Bosch Dishwasher Error Code E12: Limescale Build-up Bosch E14Bosch Dishwasher Error Code E14: Water Inflow/Flow Meter Issue

Useful guides

Water left in the dishwasher: safe checks and when to call for serviceA small amount of clean water near the filter may be normal. Water across the tub floor, dirty standing water,... Dishwasher Not Drying? Check Settings, Loading, and Safe MaintenanceUse these owner-safe checks to improve drying, understand what moisture is normal, and know when to call a tec... Dishwasher Filter Care: What You Can Clean—and When to Call a TechnicianLearn how to identify a removable dishwasher filter, clean it safely, and recognize when a pump problem needs...

References