EN
Troubleshooting
FreshJet
38
12
Troubleshooting
Problem
Cause
Remedy
Roof air
conditioner
constantly switches
itself off.
Icing sensor has tripped.
Outer temperature is too low or all air noz-
zles are closed.
No cooling
capacity
The roof air conditioner is not set to
cooling.
➤
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
defective.
➤
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
openings are clogged up.
➤
Clean the drainage openings for con-
densation water.
The seals are damaged.
➤
Contact an authorised workshop.
Roof air
conditioner does
not switch on.
No supply voltage (230 V
w
) con-
nected.
➤
Check the power supply.
The voltage is too low (under
200 V
w
).
The voltage converter is defective.
➤
Contact an authorised workshop.
One of the temperature sensors is
defective.
The electrical fuse of the power sup-
ply is too low.
➤
Check the electrical fuse of the power
supply.
DometicFJ1700-FJ2000-FJ2200-FJ3200_OPM_4445101818_EMEA16_202x-xx-xx.book Seite 38 Samstag, 9. Januar 2021 12:16 00
