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6 Maintenance
6.1 Air filter
The return air filter needs periodic maintenance.
1. Check and clean the filter every week, when in use, to pre-
vent the filter from being blocked by dirt.
2. You must wash the filter frequently to ensure effective
cooling and heating.
3. Remove the air filter from the air distributor by pushing
both tabs (1) inwards (2) and then downwards (3).
Fig.47 Removing the air filter
4. Lift the filter (1) upward and pull out of the air grille (2)
along the tracks.
1
2
Fig.48 Air filter
5. Clean the filter and air grille with warm water and deter-
gent.
6. Let it dry before installing again.
NOTE
Replacement filters can be ordered separately.
Never operate the air conditioner without a filter. This
can cause fouling of the heat exchanger and lead to a
loss of power.
6.2 Remote control batteries
lChange the remote control batteries (2 x AAA type) when
the display of the remote control becomes unreadable
and/or blurry.
lRemove the batteries from the remote control if the remote
control is not used for a long time to prevent damage to
the remote control from leaking batteries.
Fig.49 Remote control batteries
See also chapter5.16, "Resetting the remote control" on page
16.
All batteries and electronic devices are the sub-
ject to European Directive 2006/66 / EC or
2002/96 / EC and later must not be disposed of
with household waste. See also https://eur-
lex.europa.eu/advanced-search-form.html.
Every consumer is legally obliged to dispose of
batteries and electronic equipment only in
marked recycling bins at a waste collection
point. The return is free of charge.
See also: chapter8, "Disposal" on page 19.
6.3 Bolt check
Check the four bolts holding the unit to the roof for tightness 3
months after first installation of the product.
Inspect the bolts regularly; minimally every 12 months.
Retighten to 7 Nm if necessary.
6.4 Regular usage
Webasto recommends that you operate air conditioner regularly
to ensure good performance. Minimally run the unit every 6
months for at least for 20 - 30 minutes.
6.5 Cleaning
Regularly remove leaves or other dirt from the ventilation grilles
of the outdoor unit.
lRegularly clean the unit using a soft, damp cloth and mild
detergent.
lClean the vehicle roof at regular intervals. A dirty roof heats
up more than a clean roof.
CAUTION
Never drive through automatic car washes with a roof
air conditioner installed.
Do not spray into the openings of the unit with a high-
pressure cleaner.
Do not use hot cleaners and steam cleaners.
Do not use sharp or hard objects for cleaning.
Never use petrol, diesel, solvents or aggressive cleaning
agents.
6.6 Heat exchangers
Minimally have your unit’s heat exchangers cleaned by a spe-
cialist workshop once per year.
17


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