Webasto Air Top Evo 40, Руководство по обслуживанию

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5.3 Error Symptoms During Function
The following table lists the possible error symptoms in the order in which they may occur during operation. In the event
of a fault, the error is to be located using this table and rectified. It is important that the error symptom is correctly
identified. If the error symptom is not included in this table or if the fault is not found under the specific error symptom
heading, in an emergency you can contact our technicians on our service hotline.
NOTE: Every fault is indicated by the flashing LED on the control element after the slow-down time has finished. If the
other components are okay, a defective control unit may be the cause of all the faults. There are states which are
equivalent to faults.
Error symptom Occurrence Possible causes
No start and no illumination of the
LED on the control element immediate Incorrect cabling, defective fuse
No start but LED is lit immediate The unit immediately goes into a control break when
switched on; the control break speed is 0 rpm when an
external temperature sensor is used.
Error Symptoms During Function
5.4 Fault code displayed in control element
If serious malfunctions, such as overheating or failure to start, occur with increasing frequency, then the heater is
permanently locked out and can only be returned to operation following repairs by Webasto trained professionals.
When equipped with a combination timer, a fault code output appears on the display after a malfunction occurs until
the heater malfunction has been eliminated.
In case of equipment with a rheostat or Air Top Evo Multi Control or Smartemp the fault code is displayed by means of a
flashing operating indicator after a malfunction occurs . After five short signals, the long flashing pulses are counted. The
flashing pulses match the number in the table below (e.g. F 04 = 4 long flashing pulses).
NOTE:
For equipment with combination timer: Fault codes F 01 to max. F 15 are displayed. After this the faults are
displayed with "- -".
Fault
code Fault (group) Additional information during PC
diagnostic
Troubleshooting
F 00
Control unit defective/
heater lock-out/
internal room temperature
sensor defective
01
Control unit error
81
EOL checksum error
11
Incorrectly coded control unit or incorrect
heater (fuel type) installed (the heater will not
work if this error occurs)
91 Neutrally coded or disabled control unit
(the heater will not work if this error occurs)
92 Maintain command failed (no operation if
fault occurs)
18
Customer bus defective
07 Heater lock-out active
Replace control unit
Delete heater lock-out:
Switch on unit and remove fuse.
Reinstall fuse after more than 2 s and switch
on unit again
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Air Top Evo 40 / Air Top Evo 55 Service Manual