Bosch Dishwasher: not draining, door latch malfunction

Professional Repair Guide

What is this symptom?

Is your Bosch dishwasher not draining properly, leaving water at the cycle's end? Additionally, if the door latch is malfunctioning, it may prevent the cycle from starting or completing. This issue could be due to a clogged filter, a blocked drain hose, or a faulty door latch, affecting your appliance's performance and efficiency.

Urgency: Medium

Important Tips for Bosch Models

Bosch official guidance confirms clogs in filter/pump area as common nonâ€‘drain cause and suggests checking these before contacting support

Possible Causes

Clogged filter or debris in pump area

How to Identify: Standing water after cycle, visible debris in filter area

Part: Filter and drain pump area

Blocked or kinked drain hose

How to Identify: Water remains and hose shows bends/kinks or debris; flow improves on removal/cleaning

Part: Drain hose

Faulty drain pump or impeller damage

How to Identify: Humming without draining, inspection shows jammed impeller/blade damage

Part: Drain pump/impeller

Faulty check valve

How to Identify: Water not draining despite filter/hose clear, check valve sticks or fails to open

Part: Check valve

Faulty door latch or door lock assembly

How to Identify: Dishwasher wonâ€™t start, cycle stops prematurely, door not securely latching

Part: Door latch/lock assembly

DIY Solutions

Clean filter and remove debris

Easy 10-20 minutes

Tools Needed: gloves, soft brush

Open dishwasher and remove bottom rack
Twist and lift out the filter
Rinse and clean filter under running water, remove debris
Reinstall filter securely

⚠️ Safety First: Power appliance off before accessing interior

Inspect and clear drain hose

Moderate 20-40 minutes

Tools Needed: screwdriver, bucket, flashlight

Turn off power and pull dishwasher away from cabinet
Locate and disconnect drain hose at both ends
Check for kinks or blockages and clear them
Reconnect hose ensuring proper â€˜high loopâ€™ positioning

⚠️ Safety First: Catch residual water in bucket

Reset and check door latch operation

Easy 5-10 minutes

Ensure dishwasher is off and door free of obstructions
Close door firmly until latch clicks
If it doesnâ€™t latch, inspect for misalignment or debris blocking latch
Try resetting by cycling power off/on

Professional Repairs

Replace drain pump or impeller

Estimated Cost: $80 - $200

Replace door latch/lock assembly

Estimated Cost: $50 - $150

Check/replace check valve or control board

Estimated Cost: $100 - $350

When to Call a Professional

Persistent drainage failure after DIY checks

Door latch assembly broken or mechanically damaged

Unusual noises from pump area or electrical faults

Preventive Maintenance

Clean filter and drain area: Clogs and drainage issues
Frequency: monthly
Inspect drain hose alignment: Hose kinks and blockages
Frequency: annually

Frequently Asked Questions

Why is my Bosch Dishwasher not draining, door latch malfunction?

Common causes include a clogged filter, blocked drain hose, faulty drain pump, or a malfunctioning door latch.

How do I fix Bosch Dishwasher not draining, door latch malfunction myself?

You can clean the filter, inspect the drain hose for kinks, and reset the door latch to troubleshoot the issue.

How much does it cost to fix not draining, door latch malfunction?

Professional repair costs range from $50 to $350, depending on whether you need to replace the door latch or drain pump.

When should I call a technician for not draining, door latch malfunction?

If DIY solutions don't resolve the issue, or if you suspect a faulty pump or control board, it's best to call a technician.

References & Sources

Bosch Dishwasher Not Draining Guide Official

Community Analytical Insights

Analysis based on real user discussions from appliance repair communities

Can I Fix This Myself?

65%

DIY Success Rate Difficulty: Either

Common Issues Reported by Users

Clogged drain filter or hose
Faulty door latch preventing cycle completion
Malfunctioning drain pump

User Suggested Solutions

Check and clean the drain filter and hose. Remove the bottom spray arm and unscrew the filter cover to access the filter. Rinse under warm water and clear any debris. Reassemble and test the dishwasher.
Inspect the door latch for damage or misalignment. Open the dishwasher door and check if the latch engages properly. If it's damaged, replace the door latch assembly.
Test the drain pump for functionality. Disconnect power, remove the lower spray arm, and access the drain pump. Check for blockages or test the pump with a multimeter to ensure it is operational. Replace if faulty.