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Discharge flow
Suction head too high
rate very low.
Not enough
pressure
Filter clogged or dirty
Check valve blocked
Pump blocked or defective
Air in pump or suction pipe
Pressure switch misaligned
Suction pipe draws from the bottom
Pump will not
Cut off pressure too high. Leaks in
stop.
pressure side
If you are unable to solve the problem yourself, please call our technical support. Please, bear in mind that
repairs carried out incorrectly void the guarantee and may result in additional expenses.
Technical data
Model
Rated voltage
Rated power
Protection class
Max. head
Max suction head
Max. flow rate
Max. temp. of
liquid
Diam. of pressure
line
Diam. Of suction
line
Working pressure
BJS-300
230 V / 50 Hz
230 V / 50 Hz
800 W
IPX4
38 m
8 m
3.200 l/h
35 °C
approx. 33 mm
approx. 33 mm
(1")
3.8 bar
Comply with the maximum suction head
(technical data - page 21).
The suction head must be figured out
from the pumping height.
Clean or replace filter.
Clean or replace valve.
Clean pump with clean water and
remove blocking cause.
Fill pump body with water. For suction
pipes with check valve, fill the suction
pipe with water.
Call the local dealer.
Shorten or fix the suction pipe. Use filter
Use a mesh filter with check valve.
Call the local dealer.
BJS-420
TPS-360
230 V / 50 Hz
1.100 W
900 W
IPX4
45 m
40 m
8 m
4.200 l/h
3.600 l/h
35 °C
35 °C
approx. 33 mm
approx. 33 mm
(1")
4.5 bar
1.5~3.0 bar
TPS-450
230 V / 50 Hz
1.300W
IPX4
IPX4
48 m
8 m
8 m
4.500 l/h
35 °C
approx. 33 mm
(1")
(1")
approx. 33 mm
(1")
(1")
1.5~3.0 bar
GB
21
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