Trouble Shooting Guide - Webasto Belaire H2000 Bedienungsanleitung

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Trouble shooting guide

Symptom
No air distributor dis-
play when unit turned
ON.
Cooling not available.
Heating not available.
Poor cooling capacity.
Water dripping out of
air distributor
Fault codes displayed
on the panel:
-
E0
E1
E2
E3
E4
E5
dF
Cool Top Trail 20/24
Remedy
Check whether:
X
– The power is supplied to the vehicle and circuit breakers are on.
– The remote control battery is OK.
– The remote control is off.
– The voltage is too low.
– The amperage of the circuit breaker in the external power supply is too low.
Ensure that the cooling mode is selected and the air distributor display shows
X
Use the remote control to set required temperature below the current room temper-
X
ature.
The compressor will delay a re-start for three minutes.
Ensure that the heating mode is selected and the air distributor display shows
X
Use the remote control to set required temperature above the current room temper-
X
ature.
More time would be needed for starting heating under 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
once the outside heat exchanger has been cleared. During defrost the unit displays
"dF".
Make sure the filter is clean.
X
Increase the fan speed to high to obtain the maximum capacity.
X
Make sure all the doors and windows as well as the sunroof are closed.
X
Use curtains and awnings to decrease the heat load.
X
Ensure that the air openings of outdoor unit are not soiled or blocked.
X
Unblock condensate outlets of outdoor unit.
X
Check seal of the adaptor frame.
X
Park the vehicle in a more horizontal position, with an angle < 5° (8,8%).
X
Increase the fan speed to high if condensate forms on the outside of the air distribu-
X
tor.
In case there is "0" or a jumbled display while on generator supply this may indicate
unstable voltage and current.
Communication fault.
Room temperature sensor fault.
Indoor heat exchanger temperature sensor fault.
Outdoor heat exchanger temperature sensor fault.
No cooling effect. Possible root causes are:
– Insufficient refrigerant amount due to piping fracture.
– Compressor fault.
– Sensor failure.
Outdoor heat exchanger temperature too high / Temperature anomaly.
Temperature anomaly: outdoor heat exchanger temperature too high when cooling or
too low when heating.(When cooling, the display of E5 indicates the outdoor temper-
ature 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 tempera-
ture is higher than 18°C, the external air fan may be on and off repeatedly. The occur-
rence of this is not a fault, but the self protection of the system to avoid overheating
of the unit.)
Not a fault: When operating on heating mode in low ambient temperatures the unit
will periodically defrost the outside heat exchanger. The air distributor display shows
"dF" during defrost operation and then returns to heating once the defrost is complet-
ed.
.
.
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