Grundfos SE Serie Notice D'installation Et De Fonctionnement page 25

Fault
Low motor liquid level.
Cause
The pump is operating outside the
specified operating range.
The pump is defective.
The pump is improperly connected to
the auto coupling.
The pump is cavitating.
The impeller is not in balance.
The base stand, the auto coupling, the
ring stand or the guide rails are
installed incorrectly.
The upper mechanical shaft seal is
leaking.
Remedy
Re-establish proper operating conditions.
Repair the pump or contact an authorized
workshop, if necessary.
Pump down the liquid level in the pit. Lift
out the pump and place it on the auto
coupling again.
Clean the inlet pipe.
Contact an authorized service workshop.
Install the components correctly.
Contact an authorized service workshop.
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