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THERMADOR E6103

Thermador Dishwasher Error Code E6103: Not Draining — Filter or Drain Blocked (Extended Code — Premium Models)

Clear meaning, realistic next steps, and safe guidance without turning the page into a long repair manual.

What it means

The dishwasher is not draining properly due to the drain filter being blocked.

Severity

Low - usually safe to check with basic user-accessible cleaning or inspection on the Thermador dishwasher.

Can you fix it yourself?

Yes — DIY-safe

Most likely cause

Same as E24 — drain/filter blockage on premium models

Estimated time for safe first checks: 10–20 min.

Step-by-Step DIY Fix Guide

  1. SAFETY: Turn off dishwasher. Have towels ready.
  2. Remove and clean the filter (cylindrical + flat mesh).
  3. Check drain hose for kinks. Check pump cover.
  4. Verify garbage disposal knockout plug was removed.
  5. Restore power and run a cycle to test.

If it's still not draining

  • If the drain path looks clear but the code returns, the issue is more likely in the pump path or another less accessible restriction.
  • If the door closes normally but the warning keeps returning, the latch or switch path becomes more likely than a simple alignment issue.
  • If airflow still seems weak after the basic checks, the fan path or a deeper obstruction becomes more likely.

What This Error Means

Error code E6103 on your Thermador dishwasher indicates: The dishwasher is not draining properly due to the drain filter being blocked. The appliance detects this condition through its built-in sensors and halts the current cycle to prevent further damage. Depending on the model, the code may flash on the display panel, appear on a digital readout, or cause the status lights to blink in a specific sequence. The dishwasher will not resume normal operation until the underlying fault is resolved.

The most frequent cause of error E6103 is same as e24 — drain/filter blockage on premium models. When this happens, the dishwasher's control board detects the abnormal sensor reading or motor response and triggers the fault code as a protective measure. Other contributing factors are listed in the causes section below — working through them in order is the fastest path to a fix.

Error E6103 is one of the most DIY-friendly Thermador dishwasher fault codes. Most homeowners can clear it in under 15 minutes without tools or replacement parts. Follow the step-by-step guide below exactly — skipping steps is the most common reason the error comes back.

The most visible symptom of E6103 is standing water at the bottom of the tub at the end of a cycle — the dishwasher failed to pump it out. The water may appear cloudy from food particles or detergent residue. Do not run another cycle until the fault is cleared, as this could allow water to overflow onto the floor.

Most Likely Cause by Symptom

The Thermador dishwasher may stop, pause, or refuse to complete the cycle normally.

Likely cause: Same as E24 — drain/filter blockage on premium models

Check first: SAFETY: Turn off dishwasher. Have towels ready.

Water may remain inside the appliance instead of clearing normally.

Likely cause: Same as E24 — drain/filter blockage on premium models

Check first: Remove and clean the filter (cylindrical + flat mesh).

Performance may drop because airflow, filtering, or draining is restricted.

Likely cause: Same as E24 — drain/filter blockage on premium models

Check first: Check drain hose for kinks. Check pump cover.

Common Causes

  • Same as E24 — drain/filter blockage on premium models

What Not to Do

  • Do not run further cycles until the fault is resolved

Model and Display Variation Notes

Model-family notes

  • Thermador dishwasher display wording and code formats can vary by series.
  • If your model behaves differently, check the owner manual before trying any deeper maintenance step.

Display and panel differences

  • Panel wording can vary by series, so confirm the exact code pattern before buying parts.

Parts, Tools and Service Options

Common parts

  • Replacement filter ($20–$45)
  • Drain hose ($15–$35)

Manual and model check

Check your exact model and manual before ordering any Thermador dishwasher parts.

Suggestions in this section are organized to support the troubleshooting flow first. Any future affiliate relationships should be disclosed clearly.

When Not to Keep Troubleshooting

All DIY steps completed and unit still won't drain — same path as E24

How to Prevent It Recurring

  • Clean filter monthly
  • Run garbage disposal before each wash cycle

Related Error Codes

Extra notes

  • This page is based on Thermador support material and stays conservative where model-specific guidance may vary.
  • The goal is to help you identify safe first checks before you move into parts, service, or model-specific manual lookup.

Source and model notes

Last reviewed: 2026-04-09

Based on: Based on Thermador support material and edited into consumer-safe guidance for the exact code family on this page.

View Thermador US Support

Model coverage note: Thermador dishwasher code meanings can vary by series, control panel, and model family, so use this page as a safe starting point rather than a replacement for the model-specific manual.

Important: FixThisError is an independent guide, not the manufacturer. Use your model-specific manual when the panel wording or behavior differs.

Always disconnect power before inspecting appliances. If unsure, contact a licensed appliance technician.