1. Loosen and remove the screws at the side of
the pump lid.
2. Remove the pump lid.
3. Remove the impeller unit.
– If necessary, use a wide-blade screwdriver
to lever the impeller unit out of its posi-
tion in the motor housing. For this, insert
the screwdriver blade into the groove be-
tween the impeller unit and motor hous-
REMEDY OF FAULTS
Malfunction
The unit does not start up
Water flow insufficient
Only submersed during installa-
tion
WEAR PARTS
The following components are wear parts and
are excluded from the warranty:
•
Suction cups, impeller unit
– Proceed carefully so as not to damage the
4. Clean or replace the impeller unit and subse-
quently reassemble the pump in the reverse
order.
– OptiMax 4000/5000: Firmly push the im-
Cause
No mains voltage
Impeller unit blocked
Position of the flow regulator
Filter housing or impeller unit
soiled, hose blocked
Hose defective
Hose kinked
Impeller unit worn
Filter housing clogged
REPAIR
A damaged unit cannot be repaired and must be
put out of operation. Dispose of the unit in ac-
cordance with the regulations.
ing, and firmly turn the screwdriver in or-
der to dislodge the impeller from its posi-
tion.
motor housing or O ring.
peller unit into position in the motor
housing.
Remedy
Check the mains voltage.
Clean
Readjust the flow regulator.
Clean
Replace
Route hose in a straight line
Replace impeller unit
Clean the filter housing.
- EN -
15