Troubleshooting
24 300758785_002_C1 - 06/2019 - © Leybold
6 Troubleshooting
Faults and alarms indicate problems in the frequency converter or in the
pump.
An alarm (warning) is indicated by a code on the display and the flashing
STOP LED. The frequency converter output is not necessarily switched off,
the pump is not necessarily stopped.
A fault is indicated by a code on the display and the permanently lighting
STOP LED. The frequency converter output is always switched off immedi-
ately and the pump coast to stop.
To reset an alarm or an error, first find the cause for it. Remedy it and then
switch the Start/Stop switch to Stop. Then switch the mains switch off.
Wait for a few seconds until the display goes out and then switch the mains
switch on again, and thereafter switch the Start/Stop switch to Start.
This lists up the most important alarms and faults only. For further error mes-
sages please contact the Leybold service.
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