Webasto Air Top Evo 3900 Operating Instructions Manual - Operation
Operation
Main switch ON / OFF
Switching on the heater
By pressing the main switch ON / OFF the heater is activated.
After switching on, the main switch illuminates and the indicator "ON /
Status" lights to confirm the heater operation.
Switching off the heater
By pressing the main switch ON / OFF again the heater operation is
stopped.
After switching off, the lighting of the main switch is also off.
The indicator "ON / Status" goes off after approx. 3 minutes (cooling
down of the heater).
Mode selector knob
With the mode selector knob you can select the desired functions of your
heater by placing the index on the desired symbol.
- “Eco” mode reduces the electrical power consumption by reducing the
max. heating power. Useful when saving the battery is more important
than quick heating up.
- In the “Normal” heating the heater behaves like a standard heater.
- “Plus” increases the max. heating power by ~10%. It provides extra
power for quicker heating up.
- In “Ventilation” mode the blower runs but the heater is off.
Temperature selector
You can adjust the desired interior temperature with the temperature
selector. Preferably the temperature selector should be in the marked
range of the scale (comfort range).
LED
The status LED lights green in normal heating mode. Blinking indicates
failure code; see the following faults section.
Error code
Faultless operation:
The normal operation of the equipment is represented by the status
indicator, illuminating green light.
After switching off the heater (main switch) the status indicator shows the
normal cooling down process of the heater. After the heater has cooled
down normally, the status indicator shuts off.
Fault:
During an operational fault a flashing code is displayed by the status
indicator. This function enables a professional workshop to solve the fault
in a fast way. In this case please visit a Webasto service station!