Select regular cleaning intervals depending on the degree of soiling. Do not clean the cover in the dishwasher to avoid damage.
Remove the internal cover. ATTENTION: Do not pull off the inner internal cover at the internal grille or the upper side → damage to unit.
Clean unit components with a dry cloth.
Use a vacuum cleaner if necessary. To clean the external shutter, swing the lamellae upwards. Do not use any aggressive, harmful or highly flammable cleaning agents for cleaning.