Fault Grundfos Eye Cause Remedy
Pump has tried to
restart five times
and is now stop-
ped.
Alarm.
Motor stopped.
Two opposite red indica-
tor lights flashing simul-
taneously.
Pump inlet pressure too low. Check the inlet conditions of the
pump.
Inlet pipe is partly blocked by
impurities.
Remove and clean inlet pipe.
The foot or non-return valve
is blocked in closed position.
Remove and clean, repair or re-
place valve.
Leakage in inlet pipe. Remove and repair the inlet
pipe.
Air in inlet pipe or pump. Vent the inlet pipe or pump.
Check the inlet conditions of the
pump.
Pump runs back-
wards when
switched off.
No lights on. Leakage in inlet pipe. Remove and repair inlet pipe.
Foot or non-return valve de-
fective.
Remove and clean, repair or re-
place valve.
Foot valve is blocked in com-
pletely or partly open posi-
tion.
Remove and clean, repair or re-
place valve.
19
English (GB)
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