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Malfunction
3. The pump stops af-
1.
The electrical supply does not correspond to
ter a short time of
the information given on the type plate.
operation because
the thermal motor
protection feature
2.
Pump or intake line are blocked by solids.
has triggered.
3.
Liquid is too viscous.
4.
Temperature of liquid or environment is too
high.
4. The pump stops
1. Refer to section 2.2. + 2.3.
because the anti-
dry-running feature
is activated (red
"Fehler" (Error) in-
dicator lights up).
5. The pump cuts in
1.
Permanent loss of very small quantities of liq-
and out too fre-
uid (e.g. dripping water tap, leaking hoses or
quently.
connecting elements).
2.
Electronic pump control is defective.
6. The pump does not
1.
Permanent loss of large quantities of liquid.
cut out.
2.
Electronic pump control is defective.
7. The pump does not
1.
Large suction height, see also 2.2
reach the desired
pressure.
2.
Refer to section 2.2.
Worn pump wheel.
3.

10. Warranty

The present device was manufactured and inspected according to the latest
methods. The seller warrants for faultless material and workmanship in accord-
ance 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 opera-
tion, 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 me-
chanical shaft seals are excluded from warranty.
All parts were manufactured using maximum care and high-quality materials and
are designed for a long lifecycle. 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 con-
tained in the present operating instructions will therefore considerably contribute
to a long lifecycle of these wearing parts.
30
Possible Cause
Elimination
1.
Please use a device complying with GS (German
technical supervisory authority) to check the volt-
age of the lines of the connection cord (safety in-
formation to be observed!).
2.
Remove possible congestion.
3.
Pump may not be suitable for this liquid. If feasible,
the liquid should be thinned.
4.
Make sure that the temperature of the liquid being
pumped and the environment do not exceed the
max. admissible values.
1. Refer to section 2.2. + 2.3.
1.
Eliminate leakages.
2.
Please contact the customer service department.
1.
Eliminate leakages.
2.
Please contact the customer service department.
1.
It must be considered that the given suction height
have to be deducted from the max. reachable de-
livery height.
2.
Refer to section 2.2.
Please contact the customer service department.
3.
13

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