58
59
Switch off the mains supply before proceed-
ing with items 2, 3 and 5!
Minimising condensation
Particularly in rooms with high levels of humidity,
condensation can form on the inner pane of the
window. This can be minimised by fi tting a radia-
tor directly below the window and by airing the
room frequently.
Cleaning the air fi lter
The air fi lter can be removed and washed with
ordinary household cleaners. Fully rotate and lock
the window, then remove the fi lter from the fi lter
rail. (New fi lters are available from VELUX).
Cleaning the fl ashing
Leaves and other debris should be removed from
the fl ashing around the window once per year to
allow rainwater to fl ow freely.
Snow and ice
Remove snow and ice to allow melt water to drain
off from and around the window.
1
2
3
4
Cleaning the rain sensor
Dirt on the rain sensor may cause operating prob-
lems. Therefore, it is recommended to clean the
rain sensor with a soft wet cloth once or twice a
year or when needed.
Maintenance of timber (GGL)
Pre-varnished (TOPfi nish) and
painted windows (PAINTfi nish)
The timber has received basic treatment and
a fi nished coating at the factory and can be
cleaned with ordinary household cleaners. It must
receive further treatment at least every four years
and whenever required. Windows exposed to
strong heat, strong sunlight and/or high levels of
humidity (eg in kitchens or bathrooms) must how-
ever receive treatment at least every two years.
Surface maintenance: Remove surface treatment
(varnish or paint). Ensure surface is clean and
dry and apply primer to the timber. When dry,
apply a coat of waterbased acrylic varnish/paint
(always follow the manufacturer’s directions).
Apply the same method to the aff ected areas if
the varnish/paint is damaged.
Cleaning the window (GGU)
The white polyurethane surface can be cleaned
with ordinary household cleaners.
5
6
7
Maintenance of the window