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grilles in the rooms and check if the
grilles are in their original position.
c. I want to switch off the unit at night.
• Not possible, you also need fresh
air during the night.
d. Unpleasant smell.
I. I smell the cooking in the whole
house.
• Air extract rates are too low, switch
on boost speed at cooking time.
• The filters are polluted, clean or
replace both filters.
• The grilles are dirty, clean all
grilles.
II. Near the unit.
• Condensate trap below the unit is
empty, fill it up with water.
• The flexible condensate hose is not
completely in the condensate trap,
push it in deeper.
III. Near the supply air grilles.
• The unpleasant air comes from
outside, not a ventilation fault but
to be sure, check and clean supply
air filter.