B3200 Troubleshooting
13
11 Troubleshooting
Problem Cause Remedy
Roof air condi-
tioner constantly
switches itself off.
Icing sensor has tripped. Outer temperature is too low or all air
nozzles are closed.
No cooling capac-
ity
The roof air conditioner is not set to cool-
ing.
➤ Set the roof air conditioner to
cooling.
The ambient temperature is above 52 °C. The roof air conditioner is only
designed for ambient temperatures of
up to 52 °C.
The temperature set is higher than the
room temperature.
➤ Select a lower temperature.
The ambient temperature is below 16 °C. The roof air conditioner is only
designed for ambient temperatures
above 16 °C.
One of the temperature sensors is defec-
tive.
➤ Contact an authorised workshop.
The vaporiser fan is damaged.
The condenser fan is damaged.
Low air output The air intake section is clogged up.
➤ Remove any leaves and other dirt
from the ventilation grilles of the
roof air conditioner.
The blower is defective.
➤ Contact an authorised workshop.
Water enters the
vehicle
The condensation water drainage open-
ings are clogged up.
➤ Clean the drainage openings for
condensation water.
The seals are damaged.
➤ Contact an authorised workshop.
Roof air condi-
tioner does not
switch on.
No supply voltage (230 Vw) connected.
➤ Check the power supply.
The voltage is too low
(under 200 Vw).
The voltage converter is defective.
➤ Contact an authorised workshop.
One of the temperature sensors is defec-
tive.
The electrical fuse of the power supply is
too low.
➤ Check the electrical fuse of the
power supply.
Roof air condi-
tioner does not
switch off.
One of the temperature sensors is defec-
tive.
➤ Contact an authorised workshop.
The electrical fuse of the power supply is
too low.
➤ Check the electrical fuse of the
power supply.
B3200-O-16s.book Seite 13 Dienstag, 18. April 2017 3:51 15
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