English (GB)
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9. Fault finding the product
9.1 Fault indication on the pump operating panel
Faults preventing the pump from operating properly are indicated
on the operating panel with either a yellow or red LED. A warning
is indicated with yellow and the LED is permanently on. An alarm
is indicated with red and the LED flashes.
For more information about alarms and warnings, see section
.
Fig. 36
Warning and alarm indication on the operating panel
9.2 Resetting an alarm or warning
When the pump experiences a fault, use Grundfos GO Remote to
read out alarm codes and texts. Do as follows:
1. Connect the pump to Grundfos GO Remote, see section
7.2 Connecting the pump to Grundfos GO Remote
. Grundfos
Eye in the top center of the "Dashboard" menu will be either
yellow or red, indicating either a warning or alarm.
2. Tap Grundfos Eye or choose the "Alarms and warnings" menu
in the list.
3. The menu shows an error code and a short description of the
error.
4. Correct the fault.
5. Tap the "Reset alarm" button.
9.3 Alarm and warning code logs
Grundfos GO Remote will save up to 40 alarms and warnings in
total in the "Alarms and warnings" menu.
9.4 Automatic deblocking
In case of a blocked rotor, the pump will start vibrating
automatically with a frequency of around 3 Hz during startup. Any
dirt deposits that might prevent the impeller from rotating will be
broken up swiftly, and the pump will resume normal operation.
DANGER
Electric shock
Death or serious personal injury
- Switch off the power supply before starting any
work on the product. Make sure that the power
supply cannot be accidentally switched on.
CAUTION
Pressurised system
Minor or moderate personal injury
- Before dismantling the pump, drain the system or
close the isolating valves on either side of the
pump. The pumped liquid may be scalding hot
and under high pressure.
WARNING
Electric shock
Death or serious personal injury
- A damaged product must be repaired or replaced
by Grundfos or a service workshop authorised by
Grundfos.
WARNING
Hot surface
Minor or moderate personal injury
- The pump housing may be hot due to the pumped
liquid being scalding hot. Close the isolating valves
on both sides of the pump and wait for the pump
housing to cool down.
T
M
0
7
1
2
0
8
111
8
ALPHA3
ALPHA3
Warning
Alarm
If the pump does not revert to normal duty, the fault is
not corrected. Turning the power off and on again will
not reset the alarm.
Recommendations on how to correct the fault can be
found in the "Assist" menu under "Assisted fault
advise".
