6.8 The pump is not running
The pump has been stopped by external input or
calendar function.
Grundfos Eye:
Two opposite yellow
lights are permanently
on.
Cause Remedy
The water level has
exceeded its maximum
level and triggered an
overflow alarm.
• Check the water level
in the tank, and reset
the pump manually
by switching the button
on the back of the
pump from 1-Alarm D
on to 0-Alarm D off.
• Determine the root
cause of the alarm.
• Switch the button on
the back of the pump
to 1-Alarm D on to
return to normal
operation when the
issue has been
resolved.
Related information
5.1 Overflow alarm
6.9
The pump is not running, and the
indicator light for exceeded maximum
runtime is on
Grundfos Eye:
Two opposite red
indicator lights are
flashing simultaneously.
The indicator light for
exceeded maximum
runtime is on.
Cause Remedy
The pump has been
running for a long time
and the maximum
runtime has been
exceeded.
• Check the installation
for leakage and reset
the alarm.
6.10 The pump is not running, and the
indicator light for leakage in the
system is on
Grundfos Eye:
Two opposite red
indicator lights are
flashing simultaneously.
The leakage indicator
light is on.
Cause Remedy
The internal non-return
valve is defective or
blocked in completely or
partially open position.
• Clean, repair or
replace the non-return
valve.
A small leakage is
detected by the anti-
cycling function. Alarm
is on.
• Make sure that all taps
are closed, and check
the system for
leakages.
22
English (GB)
To Next Page
Loading...
