Grundfos Multilift MOG Manual Del Usuario página 19

Fault
Meaning
code
High-level alarm
F020
in the tank
If a fault occurs, the red LED will flash, the symbol
visible and the fault will be added to the fault log. Furthermore,
the buzzer will be activated, the symbol
corresponding symbols will flash and the fault code will be
displayed. When the fault has disappeared or has been removed,
the controller will automatically switch to normal operation again.
However, the controller enables resetting of the fault indication
(visible and acoustic alarms) either manually (Man) or
automatically (Auto).
If manual resetting was selected in setup menu, the acoustic
alarm and red LED can be reset by pressing the button
fault indication will be reset when the fault has disappeared, has
been removed or the ON-OFF-AUTO switch has been set to OFF
position.
You can get an overview of faults in the fault log in the information
menu.
The symbol will be visible as long as the fault log is open.
If automatic resetting was selected in menu setup, the red LED
and the symbol will disappear, and the buzzer will be
deactivated again after the fault has disappeared, has been
removed or the ON-OFF-AUTO switch has been set to OFF
position. However, even if automatic resetting was selected,
some of the fault indications have to be reset manually.
See the table above.
Every 30 minutes the fault indication will be written from the
short-term memory into the long-term memory.
Fig. 17 Changing phases of a three-phase controller with
phase inverter
Reset of fault
Displayed Flashing
indications
text symbols
Auto
F020
will be
will be visible, the
. The
Description
Man
Alarm triggered by the additional float switch in the tank.
The piezoresistive sensor has failed to detect the start
level. The float switch starts a pump which runs for 20
seconds. The period is preset and can be changed via PC
● Tool.
Check the tank, pressure hose and the hose connections
for leakage.
The hose is connected correctly when you cannot pull it
out without pressing the locking mechanism.
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