Webasto Cool Top Trail 20 Notice D'utilisation Et D'installation page 19

8 Troubleshooting
Symptom Action
No air distributor Check if:
display when the
l Power is supplied to the vehicle and circuit
unit is turned
breakers are on.
ON.
l The remote control battery is OK.
l The remote control is off.
l The voltage is too low.
l The amperage of the circuit breaker in the
external power supply is too low.
Cooling not Check that the cooling mode is selected and the air
available. 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 Check that heating mode is selected and the air dis-
available. 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- Make sure the filter is clean.
pacity. Increase the fan speed to high to obtain the max-
imum capacity.
Make sure all doors and windows as well as the sun-
roof 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 Unblock condensate outlets of outdoor unit.
out of the air Check the adaptor frame seal.
distributor. 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:
l Insufficient refrigerant amount due to pip-
ing fracture.
l Compressor fault.
l Sensor 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
the outdoor temperature exceeds 64 °C. It is likely
9039408E_OI-II_Cool Top Trail 20-24
Symptom Action
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.
u
Are any error codes displayed?
u
Is the display of the air distributor in normal opera-
tion or not?
u
Does it display a temperature from 16 to 30 °C?
u
Can you adjust the set point temperature when in
cool or heat mode?
u Is there a "0" shown in the display?
u
Is the display showing a jumbled display?
u
When in fan mode is there any air flow from the air
distributor outlets?
u Can you hear the compressor starting or stopping in
heating or cooling mode?
ð Your 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 17.
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