Bosch 24" Compact Condensation Dryer Axxis WTB86202UC Owner's Manual

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6.
Close the filter and re-insert it.
7.
Close the door.
NOTICE:  The filter should be rinsed once a year under 
warm running water.
The filter must be dried thoroughly before being 
replaced.
Cleaning the heat exchanger
The heat exchanger requires periodic cleaning 
(recommended once per month under normal drying 
conditions). The frequency of cleaning depends on the 
amount and type loads being dried. 
To clean the heat exchanger:
1.
If the dryer is hot, run on Air fluff/No heat program to 
allow the dryer to cool down.
2.
Residual water may escape, place an absorbent cloth 
under the maintanance flap.
3.
Unlock the maintanance flap and open it completely.
4.
Turn both locking levers towards each other.
5.
Pull out the heat exchanger cap.
6.
Remove the heat exchanger.
NOTICE:  Do not damage the heat exchanger! Clean 
with warm water only. Do not use hard/sharp-edged 
objects!
7.
Rinse the heat exchanger and the cap on all sides with 
a jet of water to completely remove all of the fluff.