B3200
After the above checks, call your local service center for further help. This unit must
be serviced by qualified service personnel only.
Problem
Cause
Roof air condi-
Icing sensor has tripped.
tioner constantly
switches itself off.
No cooling capac-
The roof air conditioner is not set to cool-
ity
ing.
The ambient temperature is above 52 °C. The roof air conditioner is only
The temperature set is higher than the
room temperature.
The ambient temperature is below 16 °C. The roof air conditioner is only
One of the temperature sensors is defec-
tive.
The vaporiser fan is damaged.
The condenser fan is damaged.
Low air output
The air intake section is clogged up.
The blower is defective.
Water enters the
The condensation water drainage open-
vehicle
ings are clogged up.
The seals are damaged.
No supply voltage (230 Vw) connected. ➤ Check the power supply.
Roof air condi-
tioner does not
The voltage is too low (under 200 V).
switch on.
The voltage converter is defective.
One of the temperature sensors is defec-
tive.
The electrical fuse of the power supply is
too low.
Roof air condi-
One of the temperature sensors is defec-
tioner does not
tive.
switch off.
The electrical fuse of the power supply is
too low.
EN
Troubleshooting
Remedy
Outer temperature is too low or all air
nozzles are closed.
➤ Set the roof air conditioner to
cooling.
designed for ambient temperatures of
up to 52 °C.
➤ Select a lower temperature.
designed for ambient temperatures
above 16 °C.
➤ Contact an authorised workshop.
➤ Remove any leaves and other dirt
from the ventilation grilles of the
roof air conditioner.
➤ Contact an authorised workshop.
➤ Clean the drainage openings for
condensation water.
➤ Contact an authorised workshop.
➤ Contact an authorised workshop.
➤ Check the electrical fuse of the
power supply.
➤ Contact an authorised workshop.
➤ Check the electrical fuse of the
power supply.
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