10
Fault diagnosis with the module clock
If the controller has detected a fault when the heater is
turned on or during heater operation, then the module
clock will indicate the fault within 15 seconds as F with
a 2-digit number.
Example: F 64 (= current fault)
and flashing heating symbol.
For fault code, description of faults and remedies, please
see pages 12 – 15.
1 Timer 4 Backwards
2 Preselection 5 Forwards
3 Heating 6 Display with fault indication
Interrogating the fault memory in the controller
The electronic controller can store up to 5 faults which
can then be read-out and displayed on the module clock.
The current fault is moved to memory location F1.
Previous faults are moved down to the memory locations
F2 to F5.
Interrogating the fault memory with module clock
Press the
c
key. The heater is turned on. Then press
the
a
key, hold it and press the
p
key within the next
two seconds. The current fault will then be displayed,
e.g. F : 64.
The stored faults (maximum 5 faults) can be called with
the
e
and
F
keys (max. 5 faults).
For fault code, description of faults and remedies, please
see pages 12 – 15.
Interrogating the fault memory with module clock,
for vehicles used to transport dangerous goods as
per GGVS / TRS 003 / ADR / ADR 99
Press the
c
key, the
p
key and the
a
key at the same
time, the
AIRTRONIC
can be switched on, the current fault
is indicated.
The stored faults (maximum 5 faults) can be called with
the
e
and
F
keys (max. 5 faults).
Deleting the fault memory
Precondition:
There is an electrical connection from terminal 15
(ignition) to the module clock, 12-pin connector,
chamber 10.
Press the
c
key. The current fault F 15 or F 50 is
displayed. Then press the
a
key, hold it and press the
p
key within 2 seconds.
The module clock is now in the program “interrogate fault
memory”.
Continue operation:
Turn off the ignition (terminal 15).
Press the
a
key and the
p
key at the same time, then turn
on the ignition (terminal 15) and wait until the following
appears on the display:
Display after
ignition “ON”
The controller is unlocked after 3 seconds, then the
heater starts.
Display after heater
starts
Please note!
If the
AIRTRONIC
is not operated with the module clock,
then fault code interrogation is possible with a diagnosis
instrument and an additional adapter cable.
Order no. diagnosis instrument 22 1512 89 00 00
Order no. adapter cable 22 1000 31 86 00
Connection see installation instructions included with
the adapter cable.
Operation see operation instructions included with the
diagnosis instrument.
flashing display
heating symbol
does not flash
Display:
currently no fault,
heating symbol
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