22
Movitec V 2,4,6,10,15 & 90
Pump is vibrating or noisy
Coupling mounted incor-
rectly
Install the coupling in par-
allel
Faulty setting of the
hydraulic assembly
Adjust the assembly
according to the manual
There is no water in the
pump
Fill and vent the pump
No supply
Make sure there is suffi-
cient supply. Check for
blockages in the supply
line
Bearings of pump and/or
motor worn
Have the bearings
replaced by a certified
company
Available NPSH too low
(cavitation)
Improve suction condition
Pump does not work in its
working range
Select another pump or
adjust the system to work
within its working range
Pump is standing on an
uneven surface
Level the surface
Malfunction
Internal blockage in the
pump
Have the pump inspected
by a certified company
Pump does not start
No voltage on the termi-
nal clamps
Check the power supply
•
Circuit
•
Main switch
•
Fuses
Check the motor safety
relay
•
Earth leakage switch
•
Protective relay
Thermal motor safety
switch triggered
Reset the thermal motor-
safety. Contact the sup-
plier, if this problem occurs
more often.
Check if the correct value
is set. Find the correct
value (I
nom
) on the
motortype plate
The motor is running, but
the pump does not work
The pump shaft has bro-
ken
Contact the supplier
The coupling between
pump- and motor shaft is
loose
Tighten the connecting
screws to the recom-
mended torque
Problem
Possible cause
Possible solution
Checkpoints
Goodnal STP ST041 Disinfection & Outfall (KSB ATF Feed Pump Skid PU-0700-110
Q-Pulse Id VM405
Active 29/10/2013
Page 24 of 41
