Thermador Dishwasher: not draining properly
What is this symptom?
Is your Thermador Dishwasher not draining properly? If water remains in the bottom after a wash cycle, it may indicate a clogged drain filter. This common issue can prevent proper drainage, leaving dirty water behind. Understanding the causes can help you determine the next steps for resolution.
Possible Causes
Clogged drain filter
How to Identify: Water remaining after cycle with visible debris around filter area; slow draining with food particles visible
Part: Dishwasher drain filter
Next step
Choose the next step for not draining properly
Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.
Browse by model — no specific failed part is claimed
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.
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.
Search results are not a diagnosis. Verify both the complete appliance model and the retailer's fit information before ordering.
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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.
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
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Clean filter: Build-up causing drainage issues
Frequency: monthly -
Inspect drain hose placement and air gap: Backflow and blockages in drainage path
Frequency: quarterly
Frequently Asked Questions
Why is my Thermador Dishwasher not draining properly?
How do I fix Thermador Dishwasher not draining properly myself?
How much does it cost to fix not draining properly?
When should I call a technician for not draining properly?
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
- Blocked or clogged drain filter
- Clogged drain hose
- Faulty drain pump
User Suggested Solutions
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Check and clean the drain filter. Open the dishwasher door, remove the lower dish rack, and take out the drain filter. Rinse it under running water to remove debris and reassemble.
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Inspect and clear the drain hose. Disconnect the hose from the dishwasher and the sink, and check for any blockages or kinks. Use a long brush or a straightened coat hanger to remove any clogs.
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Test the drain pump for functionality. If the pump is not working, it may need to be replaced. Disconnect power, remove the lower spray arm, and access the pump. Check for obstructions and test the pump with a multimeter.
Limited-source guidance; percentages and success-rate claims are not shown
View
Sources
Data compiled from real discussions on r/appliancerepair and r/Appliances:
Community Discussions
Error code E24 indicating blocked or clogged drain filter or drain hose
The issue was a blockage in the air gap, specifically in the plastic part connected to the drain hose.
Source: Reddit r/appliancerepair
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