GB
Malfunction
Possible cause
Elimination
The motor is
running, but
the pump is not
discharging any
liquid.
The intake openings are clogged.
Remove possible congestion.
The pressure line is clogged.
Remove possible congestion.
Air penetrates into the pump body.
Start pump several times so that the entire
air will be driven out.
Check valve (non-return valve), if present,
is blocked or defective.
Eliminate blocking of the check valve
(nonreturn valve) or replace, if damaged.
The pump stops
after a short
time of operation
because the
thermal motor
protection feature
has triggered.
The electrical supply does not correspond
to the information given on the type plate.
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!).
Pump or intake openings are blocked by
solids.
Remove possible congestion.
Liquid is too viscous.
Pump may not be suitable for this liquid. If
feasible, the liquid should be thinned.
Temperature of the liquid is too high.
Make sure that the temperature of the
liquid being pumped does not exceed the
max. admissible value.
Pump is running dry.
Eliminate causes of dry-running.
Intermittent
or irregular
operation.
Pump wheel obstructed by solid matters. Remove solids.
Refer to section 3.3.
Refer to section 3.3.
Refer to section 3.4.
Refer to section 3.4.
Mains voltage out of tolerance.
Make sure that mains voltage matches that
indicated on the type plate.
Motor or pump wheel defective.
Please contact the customer service
department.
The pump does
not cut in or out.
Floating switch cannot move freely.
See that floating switch can move freely.
Incorrect setting of floating switch.
Correct floating switch settings.
Floating switch defective.
Please contact the customer service
department.
9. WARRANTY
The present device was manufactured and inspected
according to the latest methods. The seller warrants
for faultless material and workmanship in accordance
with the legal regulations of the country in which the
device was purchased. The warranty period begins
with the day of the purchase and is subject to the
provisions below :
• 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 interventions undertaken by the
purchaser or by third parties.
• Damage resulting from improper handling or
operation, incorrect setting-up or storage,
inappropriate connection or installation or Acts of
God or other external influences are excluded from
warranty.
• Parts being subject to wear and tear, such as the
pump wheel (impeller) and mechanical shaft seals
are excluded from warranty.
• All parts were manufactured using maximum
care and high-quality materials and are designed
for a long life-cycle. It should be understood,
however, that the wear and tear depends on the
kind of use, the intensity of use and the internals of
maintenance. Complying with the installation and
maintenance information contained in the present
operating instructions will therefore considerably
contribute to a long life-cycle of these wearing
parts.
• In case of complaints, we reserve the option of
repairing or replacing the defective parts or replace
the entire device. Replaced parts will pass into our
property.
• Claims for liquidated damages are excluded unless
they are caused by wilful acts or negligence on the
side of the manufacturer.
• The warranty does not provide for any claims
