TPY
R
TPY
R
33
34
Problem
Possible cause
Possible solution
Checkpoints
Pump is
vibrating
or noisy
Pump is standing
on an uneven
surface
Level the surface
Malfunction
Have the pump
inspected by a
certified company
Internal blockage
in the pump
Pump does
not start
No voltage on the
terminal clamps
Check the power
supply
Circuit
Main switch
Fuses
Earth leakage swith
Protective relay
Check the motor
safety relay
Thermal motor
safety switch
triggered
Reset the thermal
motor safety.Contact
TPY call centers,if
this problem occurs
more often.
Check if thecorrect
value is set.Find the
correct value(Inom)on
the motor type plate
The motor is
runnung, but
the pump does
not work
The pump shaft
has broken
Contact TPY call
centers
Problem
Possible cause
Possible solution
Checkpoints
The motor is
runnung, but
the pump does
not work
The coupling
between pump
and motor shaft
is loose
Tighten the
connecting
screws to the
recommended
torque
Pump
supplies
insufficient
capacity
and/or
pressure
Outlet and/or inlet
shut-off valve is
closed
Open both
shut-off
valves
There is air in
the pump
Vent the pump
The suction
pressure is
insufficient
Increase the suct
on pressure
Pump rotates in
the wrong direction
3
Change over L1
and L2 of the three
phase supply.
The suction line
has not been
vented
Vent the suction
line
Air bubble in the
suction line
Install the suction
line with pump end
higher than the
other end
