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Problems
ES
PT
IT
Pump does not
suck water
EL
PL
RU
KZ
UA
Inadequate
delivery rate
RO
EN
The pump stops
during operation
(Thermostat
switched pump
off )
8.5 FATAL CIRCUMSTANCES
Power consumption too high
Performance reduced
Probable causes
Suction hose is not in water
Pump head not filled with
water
Air in the suction hose
Check valve dirty or leaks
Strainer dirty or blocked
Max. suction height
exceeded
Suction height too high
Suction kit is dirty
Filter is dirty
Water level falling rapidly
Hose diameter and/or hose
length are not suitable with
the installation
The discharge head is too
high or there are too many
connected devices
A solid body is blocking the
impeller
Water is too hot.
Pump running dry
Problems
Solutions
Immerse suction hose in water
Fill with water (as explained on
the chapter priming the pump)
Make sure the suction hose is
well sealed
Clean or replace the check valve
Clean the strainer
Check suction height
Check suction height
Clean the suction kit
Clean the filter
Immerse intake valve deeper
and make
sure intake line well sealed.
Use a larger hose diameter or a
shorter hose length
Adjust the discharge head
and the connected devices
regarding the capacity of the
pump (please refer to technical
datasheet)
Connect discharge line to water
line,
disconnect suction hose, open
the water
line. Switch on the pump for
several times
for approx. 2 sec.
Ensure water temperature does
not
exceed 35°C.
Immerse suction hose in water
Stop use and contact authorized service center
Сontact authorized service center
214
19
Qualification
required
-
-
Action
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