Thermador Dishwasher: not draining completely

Professional Repair Guide

What is this symptom?

If your Thermador dishwasher is not draining completely, you may notice water pooling at the bottom after the drain cycle. This issue can occur consistently or sporadically, indicating potential blockages within the system. Common causes include clogged filters or a blocked drain hose, which can hinder proper drainage and lead to unwanted water retention.

Urgency: Medium

Possible Causes

Clogged filters or sump area

How to Identify: Standing water at end of cycle; visible debris in filter area; slow drainage

Part: Dishwasher filters / sump assembly

Blocked or kinked drain hose

How to Identify: Water stays in dishwasher; inspection reveals hose kinks or blockages; possible odors or slow gurgling

Part: Drain hose

Next step

Choose the next step for not draining completely

Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.

Other parts options

Check related components first; use model search as a fallback.

Model number required

Model-compatible Dishwasher parts

Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.

Find a part that fits my model

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Optional routine care

Maintenance supplies

These products support cleaning or routine upkeep. They are separate from the possible repair components above and are not claimed to fix this error code or symptom.

Maintenance supply

Dishwasher Cleaner and Descaler

Supports routine removal of mineral scale, grease, and odor. It is maintenance, not a repair for a failed pump, valve, or control.

View maintenance supply
Maintenance supply

Braided Dishwasher Inlet Hose

For replacement of an externally damaged supply hose. Verify connection size, length, and appliance installation requirements before ordering.

View maintenance supply

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Preventive Maintenance

  • Clean filters and check drain hose: Clogs and drainage issues
    Frequency: monthly
  • Run garbage disposal before dishwasher: Drain line blockages
    Frequency: each use

Frequently Asked Questions

Why is my Thermador Dishwasher not draining completely?
Common causes include clogged filters or sump area and blocked or kinked drain hose.
How do I fix Thermador Dishwasher not draining completely myself?
Currently, there are no DIY solutions available for this issue.
How much does it cost to fix not draining completely?
Costs for professional repairs can vary; consult a technician for an estimate.
When should I call a technician for not draining completely?
If the problem persists or worsens, it's advisable to contact a technician for assistance.

References & Sources

Community Analytical Insights

Guidance from available sources; statistical claims are shown only for samples of at least 10 discussions

Common Issues Reported by Users

  • Clogged drain filter or sump area
  • Blocked drain hose
  • Faulty drain pump

User Suggested Solutions

  1. Check and clean the drain filter and sump area. Remove the bottom rack, take out the filter, and rinse it under warm water. Clear any debris from the sump area.

  2. Inspect the drain hose for kinks or blockages. Ensure it is properly connected and not pinched. If blocked, detach and clean the hose.

  3. Test the drain pump for functionality. If it is not running, check for electrical issues or replace the pump if necessary.

Limited-source guidance; percentages and success-rate claims are not shown
View Sources

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

  1. Thermador dishwasher only partially drains

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