Blomberg Dishwasher: not draining
What is this symptom?
If your Blomberg dishwasher is not draining, you may notice water pooling at the bottom after the wash cycle. This common issue can stem from a clogged filter, a blocked drain hose, or even a faulty drain pump. Understanding the cause can help you effectively troubleshoot and restore your dishwasher's functionality.
Important Tips for Blomberg Models
- Blomberg recommends checking drain hose position and cleaning filters as initial steps
Possible Causes
Clogged filter or drain area
How to Identify: Standing water after cycle with food debris visible at bottom, slow drainage
Part: Dishwasher filter / drain screen
Blocked or kinked drain hose
How to Identify: Water remains after cycle and drain hose behind unit appears bent, twisted, or blocked
Part: Drain hose
Faulty drain pump
How to Identify: Unusual noises during drain phase, no water movement despite cleared filters/hoses
Part: Drain pump assembly
Air gap or garbage disposal connection blockage
How to Identify: Dishwasher connected to garbage disposal; disposal clogged or air gap blocked and water cannot exit
Part: Air gap / garbage disposal connection
DIY Solutions
Clean the dishwasher filter and drain area
- Turn off power and open dishwasher
- Remove bottom rack and locate filter at base
- Twist and lift out the filter assembly
- Rinse under warm water and scrub debris with brush
- Reinstall filter securely and run a short cycle
Inspect and clear drain hose
- Turn off power and water supply
- Pull out dishwasher to access rear drain hose
- Inspect hose for kinks or twists and straighten
- Disconnect hose and flush water through it or use brush to clear blockages
- Reconnect hose ensuring a proper high loop
Clean the air gap or garbage disposal connection
- Locate air gap on sink or under counter
- Remove cover and clean any debris
- If connected to garbage disposal, run disposal to clear blockages
- Reassemble and test dishwasher
Next step
Choose the next step for not draining
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
Dishwasher Filter
Screens food debris from recirculating wash water and protects the pump system.
- Typical part-only price
- $15 - $65
- DIY difficulty
- Easy
- Estimated time
- 5-15 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.
Drain Hose
Carries waste water from the drain pump to your home's standpipe or sink drain.
Drain Pump
Pumps waste water out of the appliance during the drain cycle.
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.
Professional Repairs
Replace drain pump
Diagnose complex plumbing or internal faults
When to Call a Professional
Preventive Maintenance
-
Clean filters: Debris buildup that can block drainage
Frequency: monthly -
Inspect drain hose: Kinks or blockages in hose that restrict flow
Frequency: annually
Frequently Asked Questions
Why is my Blomberg Dishwasher not draining?
How do I fix Blomberg Dishwasher not draining myself?
How much does it cost to fix not draining?
When should I call a technician for not draining?
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 drain hose
- Faulty drain pump
- Blocked air gap or garbage disposal
User Suggested Solutions
-
Check and clean the drain filter and drain hose. Remove the bottom rack, take out the filter, and rinse it under warm water. Inspect the drain hose for kinks or clogs.
-
Inspect and test the drain pump. If the pump is clogged or malfunctioning, it may need to be removed and cleaned or replaced. To access, remove the lower spray arm and the cover.
-
Check the air gap or garbage disposal for blockages. If your dishwasher is connected to a garbage disposal, ensure it is clear and the air gap is not clogged.
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
dishwasher is not draining
Push in a small tab before rotating the pump to remove it.
Source: Reddit r/appliancerepair
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