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Heater cuts out automatically
Black smoke is emitted from the heater
Cause
Cause
Remedy
Remedy
Troubleshooting Error code output on combination timer or control element
NOTE for ADR mode only:
!
If an error occurs, first check the fuse and plug connections to ensure that they are in
perfect condition and connected correctly.
If the action described below does not rectify the error, have the heater checked by
Webasto-trained personnel.
If the system is fitted with a combination timer, when an error occurs an error code is
output on the timer's display until the heater has been rectified.
If the system is fitted with a control element, when an error occurs an error code is output
by the indicator/error code display flashing. After a burst of fast flashes the error code will
be output by a sequence of long flashes, the number of which is shown in the table
below. The error code will continue until the heater is reset.
Meaning of error code
After an ADR cut-out or the application of operating voltage by switching on the main
vehicle switch and setting the control element to ”ON” the control unit will be set to
the “Fault cut-out” position.
Before the heater can be restarted the control element must be set to “OFF” or the
immediate heat button on the combination or standard timer must be pressed.
No combustion after start
and repeat start
Flame extinguishes during
operation
Heater overheats
Indicator flashes
Vehicle voltage too low
Combustion air and/or
exhaust system blocked
Switch the heater off (wait at least 2 seconds) and
then on again
Switch the heater off (wait at least 2 seconds) and
then on again
Check that the hot air can flow freely.
Allow the heater to cool.
Switch the heater off (wait at least 2 seconds) and
then on again
Charge battery
Switch the heater off (wait at least 2 seconds) and
then on again
Check combustion air and exhaust system for
blockages
F00
F01
F02
F03
F04
F06 T
F07
F08
F09
F10
F11
F12
Control unit error
No start (after 2 attempts to start)
Flame failure (at least > 5)
Undervoltage or overvoltage
Premature flame recognition
emperature sensor interrupt or
temperature sensor short circuit
Metering pump interrupt or
metering pump short circuit
Fan motor interrupt or
fan motor short circuit or
fan motor incorrect speed
Glow plug interrupt or
glow plug short circuit
Overheating
Overheating sensor interrupt or
overheating sensor short circuit
Heater lock-out
4


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