11
10. Fault Finding Chart
Before maintenance or repair disconnect the pump from
the power supply to avoid accidental starting of the pump!
Fault Cause
Remedy
Motor does not start
•
Supply failure
•
Check power
supply
•
Impeller is blocked
•
Clean the impeller
Pump does not turn
off
•
Float switch is
blocked
•
Make sure that the
float switch can
operate
Not enough flow, the
needed head will not
reached
•
Increased current
•
Measure the vol-
tage
•
Water loss be-
cause of leakage
in the discharge
pipe
•
Seal the discharge
pipe
•
Too high operation
head
•
Check operation
head, replace by
stronger pump
•
Suction sieve is
dirty
•
Clean the suction
sieve
Pump operates, but
switches off after a
while*
•
Motor winding
defect
•
Return the pump
to our service
dept.
•
Impeller is blocked
•
Clean the impeller
•
Temperature of the
medium is too high
•
Temperature of
the medium max.
35°C
•
Unsufficient motor
cooling, caused by
too low water level
•
Position the pump,
so that teh motor
is submerged
Pump operates at
below standard
performance
•
Impeller is blocked
•
Clean the impeller
Pumpe operates, but
gives no liquid
•
Non-return valve
blocked
•
Clean the non-
return-valve
•
Air in pump
•
Vent the pump
* The pump motor is protected by a thermal sensor, which trips out at
high motor temperature, in order to prevent overheating. After re-
cooling the sensor switches on again automatically.
WEEE Notice
The Directive on Waste Electrical and Electronic Equipment (WEEE),
which entered into force as European law on 13th February 2003,
resulted in a major change in the treatment of electrical equipment at
end-of-life.
The purpose of this Directive is, as a first priority, the prevention of
WEEE, and in addition, to promote the reuse, recycling and other
forms of recovery of such wastes so as to reduce disposal.
The WEEE logo on the product or on its box indicates that this prod-
uct must not be disposed of or dumped with your other household
waste. You are liable to dispose of all your electronic or electrical
waste equipment by relocating over to the specified collection point
for recycling of such hazardous waste. Isolated collection and proper
recovery of your electronic and electrical waste equipment at the
time of disposal will allow us to help conserving natural resources.
Moreover, proper recycling of the electronic and electrical waste
equipment will ensure safety of human health and environment. For
more information about electronic and electrical waste equipment
disposal, recovery, and collection points, please contact your local
city centre, household waste disposal service, shop from where you
purchased the equipment, or manufacturer of the equipment.
