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Troubleshooting | 8
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8 Troubleshooting
Symptom Action
No air distributor
display when the
unit is turned
ON.
Check if:
lPower is supplied to the vehicle and circuit
breakers are on.
lThe remote control battery is OK.
lThe remote control is off.
lThe voltage is too low.
lThe amperage of the circuit breaker in the
external power supply is too low.
Cooling not
available.
Check that the cooling mode is selected and the air
distributor display shows:
Use the remote control to set required temperature
below the current room temperature.
The compressor will delay a re-start for 3 minutes.
Heating not
available.
Check that heating mode is selected and the air dis-
tributor display shows:
Use the remote control to set required temperature
above the current room temperature.
More time would be needed for starting heating un-
der extremely cold condition.
When the unit is in heating mode and the outside
temperature is very low the unit may automatically
enter defrost mode. The heating will temporarily
stop as the unit warms the outside heat exchanger
to remove any frost & ice. Heating will resume when
the outside heat exchanger has been cleared. During
defrost the unit displays “dF”.
Poor cooling ca-
pacity.
Make sure the filter is clean.
Increase the fan speed to high to obtain the max-
imum capacity.
Make sure all the doors and windows as well as the
sunroof are closed.
Use curtains and awnings to decrease the heat load.
Check that the air openings of outdoor unit are not
soiled or blocked.
Water dripping
out of the air
distributor.
Unblock condensate outlets of outdoor unit.
Check the adaptor frame seal.
Park the vehicle in a more horizontal position, with
an angle < 5° (8,8%).
Increase the fan speed to high if condensate forms
on the outside of the air distributor.
Fault codes on the panel:
- If there is “0” or a jumbled display while on gener-
ator supply this may indicate unstable voltage and
current.
E0 Communication fault.
E1 Room temperature sensor fault.
E2 Indoor heat exchanger temperature sensor fault.
E3 Outdoor heat exchanger temperature sensor fault.
E4 No cooling effect. Possible root causes are:
lInsufficient refrigerant amount due to pip-ing
fracture.
lCompressor fault.
lSensor failure.
E5 Outdoor heat exchanger temperature too high /
Temperature anomaly.
Temperature anomaly: outdoor heat exchanger tem-
perature too high when cooling or too low when
heating. (When cooling, the display of E5 indicates
Symptom Action
the outdoor temperature exceeds 68°C. It is likely
due to the reduction of air flow of the condenser,
poor working of the condenser fan or sensor failure;
when heating, if the outdoor temperature is higher
than 18°C, the external air fan may be on and off
repeatedly. The occurrence of this is not a fault, but
self-protection of the system to avoid overheating of
the unit.)
dF Not a fault: When operating on heating mode in low
ambient temperatures the unit will periodically de-
frost the outside heat exchanger. The air distributor
display shows “dF” during defrost operation and
then returns to heating once the defrost is com-
pleted.
NOTE
Before contacting Webasto for technical support please
collect the following information.
uAre any error codes displayed?
uIs the display of the air distributor in normal opera-
tion or not?
uDoes it display a temperature from 16 to 30°C?
uCan you adjust the set point temperature when in
cool or heat mode?
uIs there a “0” shown in the display?
uIs the display showing a jumbled display?
uWhen in fan mode is there any air flow from the air
distributor outlets?
uCan you hear the compressor starting or stopping in
heating or cooling mode?
ðYour help in collecting this information will greatly
assist the service team help you.
Thank you!
9 Disposal
Dispose of packaging material as required by stand-
ing regulations, separating them for recycling.
When your system has reached the end of its life, you
cannot dispose of the system as regular waste. Make
sure to dispose of the system in accordance with all
local and national applicable rules and regulations.
You can obtain information about disposal at your
local municipality, the responsible waste station, and
your local Webasto sales partner.
Every consumer is legally obliged to dispose of batter-
ies and electronic equipment only in marked recycling
bins at a waste collection point. The return is free of
charge.
See also: chapter7.2, "Remote control batteries" on page 16.
17


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