14. Fault finding
14.1 Grundfos Eye operating indications
Grundfos Eye Indication Description
TM053827
No lights are on.
Power off
The pump is not running.
TM053829
Two opposite green indicator lights running in the direction of rotation
of the pump.
Power on
The pump is running.
TM063806
Two opposite green indicator lights are permanently on.
Power on
The pump is not running.
TM053839
Two opposite red indicator lights are flashing simultaneously.
Alarm
The pump has stopped.
TM1040615
Two opposite red indicator lights are flashing three to five times and in
between two opposite green indicator lights are flashing one time.
Alarm
The pump has stopped.
Contact Grundfos.
14.2 Fault resetting
You can reset a fault indication in one of the following ways:
• When you have eliminated the fault cause, reset the pump
manually by pressing the button. The pump will then revert to
normal duty.
• If the fault disappears by itself, the pump will attempt to reset
automatically and the fault indication will disappear if automatic
reset is successful and provided that you have enabled the auto
reset function in the service menu.
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