
Troubleshooting Air Top 2000 ST
502
5.3 Error symptoms during function
The following table (Fig. 502) 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 OK, a defective control unit may be the
cause of all the faults.
There are states which are equivalent to faults.
Error symptom Occurrence Possible cause
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 pause when
switched on; the control pause speed is 0 rpm for a
boat heater.
Fig. 502 Error symptoms during function
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