Troubleshooting easy cool
64 Installation and operating manual
9 Troubleshooting
Possible
malfunction
Cause Remedial measure
Device con-
stantly switches
itself off.
Icing sensor has tripped. Outer temperature is too low or all
air nozzles are closed.
No cooling
capacity
The device is not set to cooling. Set the device to cooling.
The ambient temperature is above
43 °C.
The roof air conditioner is only
designed for ambient tempera-
tures of up to 43 °C.
The temperature set is above the
room temperature.
Select a lower temperature.
The temperature sensor is defec-
tive.
Consult an authorised specialist
workshop.
The vaporiser fan is damaged.
The condensor fan is damaged.
No heating
capacity
The ambient temperature is above
30 °C.
Only use the heating function of
the roof air conditioner at temper-
atures below 25 °C.
The device is not set to heating. Set the device to heating.
The temperature sensor is defec-
tive.
Consult an authorised specialist
workshop.
Low air output The air intake section is clogged
up.
Ensure unhindered air supply at
the air intake units.
The vaporiser fan is damaged. Consult an authorised specialist
workshop.
Water enters the
vehicle
The condensation water drainage
openings are clogged up.
Clean the drainage openings for
condensation water.
The seals are damaged. Consult an authorised specialist
workshop.
Air conditioner
will not go on
There is no voltage. Check the power supply.
The voltage is too low
(under 200 V).
The voltage converter is defective.
Consult an authorised specialist
workshop.
The temperature sensor is dam-
aged.
The electrical fuse of the power
supply is too low.
Check the electrical fuse of the
power supply.
Air conditioner is
unable to be
switched off
The temperature sensor is defec-
tive.
Consult an authorised specialist
workshop.
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