Launtop MQ6638-FUZHOU, Оригинальное руководство пользователя, Страница: 12 / 22

Original Instructions 8204216
Malfunction Cause Remedy
P
owe
r c
onsum
pti
on of
p
ump i
s too
lar
ge
There is a rub between impeller
and flow guidance
Listen to the sound carefully,
whether the impeller is clashed
with the case and then to adjust
The impeller is obstructed by
weeds or eyewinker.
Check and clean up
No f
low sudde
nly
The connector of inlet pipe is
loosed or leakage
Check inlet pipeline and remedy
Suction bead is too high and
cause cavitations Check suction head and lower the
position of pump
C
ause v
ibra
ti
on or
noise
Suction head is too high and
cause cavitations Check suction head and lower the
position of pump
Output of water is too large Decrease the output of water
Inlet pipe is obstructed by foreign
body so the resistance is too large Check inlet pipe and filter net to
clean up
Rotary part is loosed
Listen carefully and inspect the
part which cause the noise and
stop the machine to adjust
Installing for pump unit is not
stability Stop the machine for checking and
adjusting
There is air lay up in the pump or
pipeline Screw off air drain screw cock and
expel the air