Bosch Dryers - Recent Questions, Troubleshooting & Support
I have a two year
I had exactly the same problem and got it fixed by the Bosch repair service today.
The culprit is that in certain areas there may be algae in the air that thrive to grow in the main water reservoir and clog up the water pump that fills the condensation compartment.
(note: There are two water tanks in the Ecologixx 7 - one user serviceable condenser tank up top and the non-user serviceable main water reservoir sealed inside the machine)
This is main water reservoir is located sealed under the water pump under the tumble dryer drum.
1. remove the top of the tumble dryer first (two screws at the back
2. remove the right side panel with another few screws (looking from the front)
3. disengage the multi-tooth elastic band by twisting the spring loaded roller at the bottom).
After this you have access to the water pump and the Styrofoam float that triggers the empty condenser tank warning.
If the pump is entirely clogged you might need to replace it and the float.
Then clean the bottom water reservoir from the algae infested water with a pump+hose and a bottle washing brush and circulate clean water through the machine (re-engage the elastic band before running the engine) with the Warm-program.
To kill the algae you need to run about 250ml of clear raw vinegar through the pump system by running the machine in the Warm program for 10min and then rinse the excess vinegar out by putting about half a condenser tank of warm water into the machine and running the Warm-programme for 30min. (this will release the clean water into the condenser unit for the self-cleaning function and then pump it back up into the condenser water tank and dilute and circulate the raw vinegar out of the machine).
You should also do a vinegar sanitization run before all extended periods of disuse of the machine by pouring 250ml of vinegar into the large round hole under the top condenser tank (this is where the condensed water is poured for the self-cleaning run).
Run the Warm-program without the condenser tank in place until you can verify visually that the pump is circulating the vinegar through the hose in the top left back corner of the condenser tank opening (there is a overflow drain at the back so everything coming up goes promptly back down into the main reservoir (small hole in the back corner bottom).
Then place the condenser water tank half full with hot water (not boiling) and let the Warm-programme run for 30min to dilute and circulate the vinegar-water solution out of the machine back into the condenser reservoir.
on Jun 02, 2019
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