Description Of Fault Indications - Grundfos Multilift M Montage- Und Betriebsanleitung

6.4 Description of fault indications

If a fault occurs, the symbol
the 14-segment characters in the display. To see the kind of fault, if it is automatically reset and the code is not longer visible, open the
fault log (see fig. 13). When you leave the fault log, the symbol
The last 20 faults are stored in the fault log as fault codes. The meaning of the fault codes are described in the table below:
Fault
Meaning
code
F001 Phase sequence failure
F002 One phase missing
F003 High liquid level
F004 Sensor failure
F005 Overtemperature, pump 1
F006 Overtemperature, pump 2
F007 Overcurrent, pump 1
F008 Overcurrent, pump 2
Operating time exceeded,
F011
pump 1
Operating time exceeded,
F012
pump 2
F013 External fault
F014 Battery failure
Relay or contactor does
F015
not open, pump 1
Relay or contactor does
F016
not close, pump 1
Relay or contactor does
F017
not open, pump 2
Relay or contactor does
F018
not close, pump 2
F019
Communication fault
F117
16
will be visible, an audible alarm will be given by the buzzer and the fault code will be written by means of
Displayed Flashing
text symbols
F001
F002
F003
SENSOR -
TEMP
TEMP
F007
F008
F011
F012
EXT -
BAT -
RELAY
RELAY
RELAY
RELAY
The
display is
off.
F117
will disappear.
How to
reset fault
indications Description
Auto Man
(Only three-phase pumps)
● The phase sequence between control board and power
supply is wrong. See fig. 14.
(Only three-phase pumps)
● ●
One phase is missing.
● ● The liquid level is high in relation to preset value.
● ● Sensor signal out of range or lost.
Motor thermal switches connected to the controller will
● ●
stop pump in case of overheating.
● ● Not relevant for Multilift M.
The pump is stopped if an overcurrent is measured for a
●
certain period of time (blockage protection).
● Not relevant for Multilift M.
The pump has run for more than the allowed operating
time, and the controller has stopped the pump for a
defined cool-down period in order to prevent overheating.
The operating time and cool-down period depend on the
pump. See the duty type on the nameplate.
● ● Check that the outlet valve is open.
Check that the non-return valve is functioning. A leaky
non-return valve can allow liquid in the outlet pipe to flow
back into the tank.
Remove any blockage from the venting system. See fig.
31.
● ● Not relevant for Multilift M.
An external level switch can be connected to the
controller to give an alarm when basement outside the
●
lifting station is flooded by groundwater or water from
burst water pipe.
● ● The battery is empty and must be replaced.
The pump receives a signal to stop, but does not react.
●
This situation is detected by current measurement.
The pump receives a signal to start, but does not react.
●
This situation is detected by current measurement.
● Not relevant for Multilift M.
● Not relevant for Multilift M.
Communication fault between the main board and the
display. As the display is off, you can only see the fault
●
code via PC Tool. Check the ethernet cable between the
main board and the display.
Communication fault between the main board and the
display. The display is on and shows the fault code F117.
●
Check the ethernet cable between the main board and
the display.