Bosch Dishwasher: E15 error code

Professional Repair Guide

What is this symptom?

Experiencing the Bosch Dishwasher E15 error code? This indicates that the anti-flood safety system has detected unwanted water accumulation in the base tray, causing your dishwasher to halt mid-cycle. To prevent flooding, the error will persist until the water is removed and the system is reset.

Urgency: Medium

Important Tips for Bosch Models

  • E15 code specifically indicates activation of Bosch’s anti‑flood/leak detection system
  • Bosch recommends contacting customer support when E15 appears due to leak detection

Possible Causes

Water accumulation in base pan triggering flood detection system

How to Identify: E15 error code displayed; water detected under dishwasher when tilt or panel removed; float/safety switch triggered. (博世家电

Part: Base pan/leak sensor (E15 safety switch)

Excessive suds/incorrect detergent causing overflow

How to Identify: Visible excessive suds; point of use wrong detergent type or too much detergent used. (博世家电

Part: Dishwasher detergent system/suds management

Clogged filters or blocked drainage causing water back‑up

How to Identify: Slow or no drainage, standing water in tub after cycle, E15 triggered. (Best Buy Blog

Part: Drain filter, drain pump, hoses

Worn/defective door seal or gasket leak

How to Identify: Water around door edges after cycle, visible seal wear or cracks. (博世家电

Part: Door seal/gasket

Internal leak from hoses, sump basin, inlet valve

How to Identify: Consistent water pooling under machine despite resets; visible drips when inspecting internal parts. (博世家电

Part: Hoses, sump basin, inlet valve

DIY Solutions

Clear water from base and reset E15 safety switch

Moderate 30–60 minutes
Tools Needed: screwdriver (Torx or Phillips), towels/sponges
  1. Disconnect dishwasher from power and water.
  2. Remove lower kickplate/panel to access base pan.
  3. Mop up standing water in base pan and dry thoroughly.
  4. Locate E15 safety float/switch; remove/clean and reposition float.
  5. Reassemble and reconnect power; run short cycle to test.
⚠️ Safety First: Always disconnect power before removing panels.

Clean drain filter and check for drainage blockages

Easy 10–20 minutes
Tools Needed: Gloves
  1. Remove bottom rack.
  2. Locate and remove drain filter; clean debris.
  3. Inspect visible drain hose entry for blockages.
  4. Reinstall filter and run drain cycle.
⚠️ Safety First: Do not force debris deeper into drain hose.

Check and replace door gasket

Moderate 30–45 minutes
Tools Needed: Screwdriver, replacement gasket
  1. Disconnect power.
  2. Open dishwasher door and inspect gasket.
  3. Remove old gasket and install new approved gasket.
  4. Ensure proper seating and run test cycle.
⚠️ Safety First: Use correct model gasket.

Professional Repairs

Repair or replace internal leak sources (hoses, sump, inlet valve)

Estimated Cost: $150–$400

Replace E15 leak sensor/safety switch

Estimated Cost: $80–$180

When to Call a Professional

Error persists after removing water and reset attempts
Visible leaks from internal hoses or sump
Malfunctioning safety switch or electronic control faults

Preventive Maintenance

  • Clean filters and check seals: Drain blockages and minor leaks
    Frequency: monthly
  • Inspect hoses and connections: Internal hose leaks leading to E15 error
    Frequency: annually

Frequently Asked Questions

Why is my Bosch Dishwasher E15 error code?
The E15 error code indicates water in the base pan, triggering the anti-flood safety system.
How do I fix Bosch Dishwasher E15 error code myself?
To fix it, clear water from the base, clean the drain filter, and check the door gasket.
How much does it cost to fix E15 error code?
Professional repairs for the E15 error can cost between $150 and $400.
When should I call a technician for E15 error code?
Call a technician if DIY fixes do not resolve the issue or if there are internal leaks.

References & Sources

Community Analytical Insights

Analysis based on real user discussions from appliance repair communities

Can I Fix This Myself?

50%
DIY Success Rate Difficulty: DIY

Common Issues Reported by Users

  • Water inlet valve malfunction (1 mentions)
  • Issues with diverter or seals (1 mentions)

User Suggested Solutions

  1. Replaced the water inlet valve, inlet water line, and drain hose

    Success rate: 50.0%

  2. Investigate diverter, seal, and filter for potential issues

    Success rate: 0.0%
Analysis based on 2 community discussions
View Sources

Data compiled from real discussions on r/appliancerepair and r/Appliances:

  1. Bosch Dishwasher - Troubleshooting E15 error code (Water Inl...
  2. E15 error code advice needed for next step

Community Discussions

E15 error code

Replaced the water inlet valve, inlet water line, and drain hose; resolved the E15 error.

DIY View on Reddit →

Source: Reddit r/appliancerepair

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