Calpeda e-idos E-MPSM 304 SQ, Operating Instructions Manual

Page: 13 / 24

EN
E-MPSM Rev2 FRA_ - Operating Instructions Page 13 / 24
12. TROUBLESHOOTING
OFF
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.
Strictly follow the user instructions and if necessary contact an authorised service centre.
PROBLEM PROBABLE CAUSES POSSIBLE REMEDIES
1)
The motor
does not start
1a) Disconnected or unsuitable
power supply
1b) Shaft blocked
1c) If the above causes have already
been checked, the engine may
be malfunctioning
1d) Supply voltage lower than 195V
1e) Motor short circuit
1f) Pump error
1a) Check the complete insertion of the plug and check that the
mains frequency and voltage correspond to the electrical
characteristics shown on the indicator plate
1b) Remove the cause of blockage as indicated in the “Blocked
pump” instruction booklet
1c) Repair or replace the engine by applying to an authorised
service centre
1d) Check supply voltage
1e) Contact an authorized service center.
1f) Disconnect the power supply wait 10s and restore power.
2)
Pump
blocked
2a) Prolonged periods of inactivity
with formation of rust inside the
pump
2b) Presence of solid bodies in the
pump rotor
2c) Bearings siezed
2a) Remove suction strainer and manually check the free
rotation of impeller, if necessary contact an authorised
service center
2b) Check and clean impellers and diffuser, if necessary contact
an authorised service center
2c) If the bearings are damaged replace them or if necessary
contact an authorised service centre
3)
The pump
functions
but no water
comes out
3a) Suction filter blocked
3b) Non-return valve blocked
3c) Not enough suction head
3c) Clean the filter, if necessary, replace it . See point 2a) also.
3d) Verify that the integrated non-return valve is working
properly.
3c) Check and, if possible, restore minimum suction head
otherwise. Disconnect the power supply wait 10s and
restore power.
4)
The pump
does not
stop
4a) Non-return valve broken,
blocked or clogged with solid
parts.
4b) Stop pressure too high.
4c) Insufficient pump performance
4a) Check the function of the integrated check valve and
remove the solid parts present in the valve.
4b) Contact an authorised service center.
4c) Contact an authorised service center.
5)
The pump
works
intermittently
5a) Non-return valve broken, blocked or
clogged with solid parts
5b) Incorrect tank pressure, Empty tank
or broken membrane.
5a) Check if the built-in check valve is working properly and
remove the solid parts present in the valve
5b) Check the tank pressure
6)
Insufficient
flow
6a) Pipes and accessories with
diameter too small causing
excessive loss of head
6b) Presence of deposits or solid
bodies in the internal passages
of the rotor
6c) Rotor deteriorated
6a) Use pipes and accessories suitable for the specific
application
6b) Clean the rotor and install a suction filter to prevent other
foreign bodies from entering
6c) Replace the rotor, if necessary, contact an authorised
service centre
7)
Noise and
vibrations
from the
pump
7a) Rotating part unbalanced
7b) Worn bearings
7c) Pump and pipes not firmly
attached
7d) Flow too strong for the diameter
of the delivery pipe
7e) Functioning in cavitation
7a) Check that no solid bodies are obstructing the rotor
7b) Replace the bearings
7c) Anchor the delivery and suction piping as needed
7d) Use bigger diameters or reduce the pump flow
7e) Reduce the flow by adjusting the feeder gate and/or using
pipes with a bigger internal diameter.
8)
Excessive
number of
starts/hour
8a) Pump started more than 240
times in 2 hours
8a) Install a higher capacity tank
Changes reserved.