Webasto Air Top Evo 3900 Operating Instructions Manual page 4

Combination timer
Program number
Program selector
General
information
Operation
Error code
Combination timer
Day
MO MO
2
Time
Immediate
heat
The combination timer allows the heater start time to be selected
for a period of up to seven days.
Three cut-in times can be programmed, although only one of them
may be activated.
The combination timer has a temperature setpoint generator.
When the ignition is switched on the timer shows the current time
and the day. When the heater is operating, the display and the
buttons are lit.
When the timer is connected to the power supply all the symbols in
the display will flash. The time and day must be set. The display
remains blank in ADR vehicles.
The operation of the timer is designed such that all the flashing
symbols can be adjusted using the
is pressed for five seconds the displayed time is saved. If the
and buttons are pressed for longer than two seconds, they will
switch to high speed adjustment.
If the ignition is switched off whilst the heater is in permanent
heating mode, a remaining operating time of 15 minutes will appear
on the display and the heater will continue to operate.
On heaters that output an error code (Air Top Evo 3900/Air Top
Evo 5500), a number, the error code, may appear in the display. In
this case you should visit a Webasto service outlet.
Indicator
Return
and
Temperature
selector
Forward
buttons. If no button