Fault Indication On The Pump Operating Panel; Overview Of Alarm And Warning Codes - Grundfos ALPHA CS Installation And Operating Instructions Manual

12.1 Fault indication on the pump
operating panel
Faults preventing the pump from operating
properly are indicated on the operating panel with
Grundfos mini Eye turning either yellow or red and
the display showing an error code.
A warning is indicated when one indicator light in
Grundfos mini Eye is turning yellow and
rotating. The pump does not perform as expected,
and action is required in case of underheating or
discomfort.
An alarm is indicated when two indicator lights in
Grundfos mini Eye are flashing red and the pump
stops. Action is required.
Grundfos
Description
mini Eye
Warning indication
Alarm indication
20
12.2 Overview of alarm and warning
codes
Fault chart
Grundfos Code in
mini Eye Grundfos GO
51
40
29
72
76
85
57
43
35
Fault
Blocked motor
Undervoltage
Forced
pumping
4 Overvoltage
Internal fault
Internal fault
Internal fault
Dry running
Impellers
forced forward
Air in media