Troubleshooting - Calpeda GEO Serie Instructions Pour L'utilisation

11. TROUBLESHOOTING

WARNING: Turn off the power supply before performing any operations.
Do not allow the pump or motor to run when dry even for a short period.
OFF
Strictly follow the user instructions and if necessary contact an authorised service centre.
PROBLEM PROBABLE CAUSES
1) 1a) Unsuitable power supply
The motor 1b) Incorrect electrical connections
does not start 1c) Engine
device cuts in.
1d) Blown or defective fuses
1e) Shaft blocked
1f) If the above causes have already
been checked, the engine may
be malfunctioning
g) The float switch is blocked or
broken
h) The float switches are connected
in the wrong sequence.
2) 2a) Presence of solid bodies in the
Pump pump rotor
blocked 2b) Bearings blocked
3) 3a) Presence of air inside the pump
The pump or suction tube
functions 3b) Suction filter blocked
but no water
comes out
4) 4a) Pipes and accessories with
Insufficient diameter
flow excessive loss of head
4b) Presence of deposits or solid
bodies in the internal passages
of the rotor suction filter
4c) Rotor deteriorated
4d) Worn rotor and pump case
4e) Excessive viscosity of the liquid
pumped (if other than water)
4f) Incorrect direction of rotation
5) 5a) Rotating part unbalanced
5b) Worn bearings
Noise and
5c) Pump and pipes not firmly
vibrations
from the attached
pump 5d) Flow too strong for the diameter
of the delivery pipe
5e) Unbalanced power supply
For the TROUBLESHOOTING of the electrical control panel, refer to the instructions
manual of the control panel.
GEO_Rev1 - Operating Instructions
POSSIBLE REMEDIES
1a) Check that the mains frequency and voltage correspond
overload protective 1b) Connect the power supply cable to the terminal board
1c) Check the power supply and make sure that the pump shaft
1d) Replace the fuses, check the electric power supply and
1e) Remove the cause of blockage as indicated in the "Blocked
1f) Repair or replace the engine by applying to an authorised
g) .Replace the float switch
h) Reconnect the float switches in the right sequence.
2a) If possible, dismantle the pump casing and remove any
2b) If the bearings are damaged replace them or if necessary
3a) Release the air from the pump using the pump plugs and/or
3b) Clean the filter, if necessary, replace it . See point 2b) also.
4a) Use pipes and accessories suitable for the specific
too small causing
4b) Clean the rotor and install a suction filter to prevent other
4c) Replace the rotor, if necessary, contact an authorised
4d) Replace the rotor and the pump casing
4e) The pump is unsuitable
4f) Invert the electrical connections on the terminal board or
5a) Check that no solid bodies are obstructing the rotor
5b) Replace the bearings
5c) Anchor the delivery and suction piping as needed
5d) Use bigger diameters or reduce the pump flow
5e) Check that the mains voltage is right
to the electrical characteristics shown on the indicator plate
correctly. Check that the thermal overload protection is
set correctly (see data on the engine indicator plate) and
make sure that the fuseboard upline of the engine has been
properly connected
is turning freely. Check that the thermal overload protection
has been set correctly (see engine indicator plate)
points a) and c)
pump" instruction booklet
service centre
solid foreign bodies inside the rotor, if necessary contact an
authorised service centre
contact an authorised service centre
using the delivery control valve .Repeat the filling operations
until all air has been expelled
application
foreign bodies from entering
service centre
control panel
EN
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