CIARRA CBCS6906D Manuel De L'utilisateur Et D'installation page 16

Installation
5) Pull out the slide and install the grease filter back on the slide,
then push it into the cooker hood and install the other grease filter.
EN
6) Connect the power and pull out the slide. Then turn the LED
lights on/off to test whether the functions are working properly.
NOTE:
 Make sure you remove the tape on the damper and check if the
damper opens and closes freely, otherwise it make noises, and the
cooker hood will be shaking.
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