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GB
Malfunction
The pump is not
discharging any liquid,
the motor is not
running.
The motor is running,
but the pump is not
discharging any liquid.
The pump stops after a
short time of operation
because the thermal
motor protection
feature has triggered.
The pump does not
reach the desired
pressure.
12. WARRANTY / SPARE PARTS
AND SERVICE
The warranty period begins with the day of the
purchase and is subject to the provisions below :
Possible cause
No current.
Thermal motor protection feature has
triggered.
The capacitor is defective.
The motor shaft is jamming.
The pump housing is not filled with
liquid.
Air penetrates into the intake line.
Suction height and/or discharge height
too great.
The electrical supply does not
correspond to the information given on
the type plate.
Pump or intake line are blocked
by solids.
Liquid is too viscous.
Temperature of liquid or environment
is too high.
Refer to section 2.2.
Worn pump wheel.
Elimination
Please use a device complying with GS
(German technical supervisory authority)
to check for the presence of voltage
(safety information to be observed!).
Please verify.
Separate the pump from the electrical
mains, allow the system to cool down,
eliminate cause.
Please contact the customer service
department.
Check the cause, eliminate the reason for
the jamming of the pump.
Fill the pump housing with liquid (please
refer to "Putting into operation" section).
Check to make sure that :
a.) the connection points of the intake
line are tight.
b.) the inlet opening of the intake line
including the check valve (non-return
valve) are immersed into the liquids
being discharged.
c.) the check valve (non-return valve)
with the filter is tight and not jammed.
d.) no siphons (i.e. permanently liquid-
filled loops), kinks, counter-slopes or
narrow spots are present along the
intake lines.
Change the arrangement of the
installation so that the suction height
and/or discharge height will not exceed
the max. value.
Please use a device complying with GS
(German technical supervisory authority)
to check the voltage of the lines of the
connection cord (safety information to
be observed!).
Remove possible congestion.
Pump may not be suitable for this liquid.
If feasible, the liquid should be thinned.
Make sure that the temperature of
the liquid being pumped and the
environment do not exceed the max.
admissible values.
Refer to section 2.2.
Please contact the customer service
department.
• Within the period of warranty, all defects which
are to be attributable to defective materials or
manufacturing will be eliminated free of charge.
Any complaints are to be reported immediately
upon their detection.
• The warranty claim becomes void in the case of
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