Bosch · Dishwasher · Water Level Fault

Bosch Dishwasher Error E05

Bosch dishwasher error E05 usually indicates a water-level or pressure fault. ECL records this code as “Water Level System Fault”. Common causes on this page include Level sensor issue and Foaming, but the exact cause can vary by model and appliance generation. Start with the safe external checks below, confirm model-specific guidance using your exact model number, and arrange repair help if the code returns or any safety warning applies.

Quick answer: Water Level System Fault

In simple terms

Bosch dishwasher code E05 usually means Water Level System Fault. Follow these four steps.

1Understand the code

See what the code usually means and why it may have appeared.

2Try safe checks

Try only the simple checks listed on this page. Do not take the appliance apart.

3Check if it is safe to use

Check the safety section before you keep using the appliance.

4Choose the next step

Use the next-step box to see whether to keep checking, find a part by model or get repair help.

What Bosch E05 means

The dishwasher has detected an implausible water level signal.

Common causes

  • Level sensor issue
  • Foaming
  • Blocked pressure path

Safe checks you can make

  1. Use correct detergent
  2. Restart the appliance

Repair help

Try the safe checks first

Start with the simple checks on this page. If the code comes back, stop guessing and get repair help.

Still showing? Get repair help

No obligation. Your contact details are only shared after you submit the repair request, and only with a suitable ECL Verified repairer where coverage is available.

When to stop and call an engineer

If standard user maintenance does not clear the error, or if you suspect an electrical component failure.

Your model may be different

Error-code meanings can vary by model, market and appliance generation. Confirm Bosch E05 against the instruction manual or support information for the exact model number before replacing parts or treating this page as a model-specific diagnosis.

Where this information comes from

Publisher: Error Code Lookup Editorial Team. This page is independent information written in our own words and reviewed with safety boundaries in mind.

Manufacturer information: Bosch UK User Manuals. Use the exact model number to verify model-specific wording and instructions.

Last reviewed: 2026-05-18

How Error Code Lookup researches and verifies pages · Report a correction or provide model-specific evidence

Frequently asked questions

What does E05 mean on a Bosch dishwasher?

The dishwasher has detected an implausible water level signal.

What usually causes Bosch error E05?

Common causes include Level sensor issue; Foaming; Blocked pressure path.

Can I safely fix E05 myself?

Some basic external checks may be safe to try first. Stop if there are leaks, burning smells, overheating, electrical issues, unusual noises or repeated failures.

When should I call a professional for E05?

If standard user maintenance does not clear the error, or if you suspect an electrical component failure.

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