Thermador Dishwasher: not draining completely
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.
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.
Most relevant component to inspect
Drain Hose
Carries waste water from the drain pump to your home's standpipe or sink drain.
- Typical part-only price
- $15 - $30
- DIY difficulty
- Easy
- Estimated time
- 15-30 mins
Where can I find the model number?
Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.
Verify the complete model and part number on the retailer's compatibility page before ordering.
Other parts options
Check related components first; use model search as a fallback.
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.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. We may earn a commission from other qualifying purchases or service requests made through links on this page, at no additional cost to you. Recommendations are based on repair relevance, not commission rate.
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.
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.
Braided Dishwasher Inlet Hose
For replacement of an externally damaged supply hose. Verify connection size, length, and appliance installation requirements before ordering.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.
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?
How do I fix Thermador Dishwasher not draining completely myself?
How much does it cost to fix not draining completely?
When should I call a technician for not draining completely?
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
-
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.
-
Inspect the drain hose for kinks or blockages. Ensure it is properly connected and not pinched. If blocked, detach and clean the hose.
-
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:
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