DanPumps S-IP, Installation Manual

Page: 8 / 13

10. Trouble shooting.
Pum
p don´
t de
liv
er
s
uf
fic
ie
nt
li
qui
d.
Pu
m
p seal
leaks.
Pu
m
p m
akes h
yd
rau
ki
c n
oi
se.
Pum
p c
ons
um
es
too m
uc
h A
m
ps
.
D
is
cha
rge
pr
es
sur
e a
nd f
low
too l
ow
.
Pu
m
p f
ai
ls t
o d
el
iver
af
ter
st
ar
t-
up
.
x
x x x
x x x
x x x
x x x
x x
Valve has by mistake, been closed on the suction side.
x
x
x x
x x x x
x x x
x
x
x
x x
x
x x x x
x
Voltage or Hz are incorrect for the pump.
Voltage or Hz are incorrect for the pump.
Water level in the well is too low (open tank)
Impeller is partially clogged. Pump vibrates.
Wear ring is worn.
Air inside pump-house or periodically sucked into the pump.
The impeller is clogged.
Excessively high suction lift.
Seal not correct for the medie.
Pump has been running dry.
Pump is not running the right way.
The pump back pressure is too low.
The pump is missing 1 phase in the power line.
Operating problems.
Description of possible errors.
Valves has to be opened gradually after pump start.
The pipes are too small in diameter for the flow m³/h.
The suction is obstructed.