Bosch Dryer: condensation tank full

Professional Repair Guide

What is this symptom?

Experiencing a 'container full' message on your Bosch dryer? This common issue occurs when the condensation water reservoir appears full or is not correctly seated, interrupting drying cycles. Even an empty tank can trigger this alert. Let's explore the causes and solutions to get your dryer back on track.

Urgency: Medium

Important Tips for Bosch Models

  • Bosch dryers use internal moisture sensors and a removable condensation tank that must be emptied after each cycle. Some models have a water level electrode or moisture sensor near the pump which may get gunked up, causing false full alerts. (Hjalp.ai)(iFixit

Possible Causes

Condensation container truly full and not emptied

How to Identify: Water visible in the removable tank; dryer displays 'container full' after a cycle.

Part: Condensation water container

Improper seating of condensation container

How to Identify: Tank is empty yet dryer still reports full; reseating the tank clears the alert.

Part: Condensation water container and sensor switch

Moisture sensor or float sensor gunked up or faulty

How to Identify: Dryer repeatedly stops with full tank message despite empty tank; cleaning sensor contacts resolves issue.

Part: Water level sensor / moisture or float electrodes near the pump

Blocked water chamber or internal drainage path

How to Identify: Water collects in unusual places; visible debris in bottom water chamber upon inspection; cleaning lowers frequency of false alerts.

Part: Water chamber, condenser area

DIY Solutions

Empty and correctly reinsert condensation tank

Easy 2-5 minutes
  1. Pull out the condensation water container from the front of the dryer.
  2. Hold level and pour water out into a sink.
  3. Ensure no debris is blocking tank seating guides.
  4. Firmly slide the container back into the dryer until it clicks into place.

Clean water level sensor contacts near pump

Moderate 15-30 minutes
Tools Needed: screwdriver, soft cloth or cotton swabs, isopropyl alcohol
  1. Disconnect the dryer from power.
  2. Access rear compartment where the pump and water level sensor are located (refer to model-specific layout).
  3. Locate the metal strips/electrodes that detect water level.
  4. Gently clean contacts with alcohol and a soft cloth, removing gunk or residue.
  5. Reassemble and test dryer.
⚠️ Safety First: Ensure power is disconnected before opening access panels.

Clear blocked water chamber or drainage path

Moderate 20-40 minutes
Tools Needed: screwdriver, towel, small sponge or cloth
  1. Unplug the dryer.
  2. Remove access to the pump and condenser area as per model layout.
  3. Remove covers and inspect the water chamber for debris or lint.
  4. Soak up pooled water with a sponge and clear obstructions.
  5. Reassemble and run a short test cycle to check.
⚠️ Safety First: Dryer must be unplugged; be cautious of internal components.

Professional Repairs

Replace faulty moisture/water level sensor or controller

Estimated Cost: $80 - $250

Service or replace internal drainage pump

Estimated Cost: $100 - $300

When to Call a Professional

The 'container full' error persists after emptying the tank and cleaning sensors and water chamber.
There is visible leakage from the machine outside the removable tank area.
Internal pump or sensor replacement is suspected but beyond safe DIY capability.

Preventive Maintenance

  • Empty condensation tank after every drying cycle: Tank overfilling and dryer cycle interruption
    Frequency: every cycle
  • Clean internal sensors and water chamber periodically: False full alerts and water buildup
    Frequency: every few months
  • Clean lint and fluff filters: Restricted airflow that can indirectly affect condensation handling
    Frequency: after each use

Frequently Asked Questions

Why is my Bosch Dryer condensation tank full?
The tank may be truly full, improperly seated, or affected by a faulty moisture sensor.
How do I fix Bosch Dryer condensation tank full myself?
Empty and reinsert the tank, clean the water level sensor, or clear the drainage path.
How much does it cost to fix condensation tank full?
Professional repairs range from $80 to $300 depending on the issue.
When should I call a technician for condensation tank full?
If DIY solutions fail or if you suspect a faulty sensor or pump.

References & Sources

Community Analytical Insights

Analysis based on real user discussions from appliance repair communities

Can I Fix This Myself?

80%
DIY Success Rate Difficulty: DIY

Common Issues Reported by Users

  • Clogged or dirty condenser filter
  • Faulty drainage pump
  • Improper installation or plumbing issues

User Suggested Solutions

  1. Clean the condenser filter: Remove the filter from the dryer, rinse it under warm water, and allow it to dry completely before reinstalling.

  2. Check and replace the drainage pump if necessary: Unplug the dryer, access the pump, and test it for functionality. Replace if it’s not working properly.

  3. Inspect plumbing connections: Ensure that the dryer is properly connected to the drainage system and that there are no kinks or blockages in the hose.

Analysis based on 1 community discussions
View Sources

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

  1. Bosch 800 heat pump dryer condensation tank

Community Discussions

condensation tank filled with water

The condensation tank can fill up due to the automatic cleaning function of the condenser, even when plumbed in.

DIY View on Reddit →

Source: Reddit r/appliancerepair

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