Fault: The Unit Will Not Start; Fault: Unit Runs But Does Not Pump; Fault: The Unit Does Not Run Smoothly And Is Noisy - salmson SHS Manuel D'installation Et Mise En Service

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9 TR O UB L E SHO O T I NG AN D PO S S IB L E
S OLUTI ON S
In order to prevent damage or injury while rectifying product
faults, the following points must be observed in all cases:
- Only attempt to rectify a fault if you have qualified staff. This
means that each job must be carried out by trained special-
ist staff. For example, electrical work must be performed by a
trained electrician.
- Always secure the product against an accidental restart by
disconnecting it from the mains. Take appropriate safety pre-
cautions.
- Always have a second person on hand to ensure that the
product has been switched off for safety.
- Secure moving parts to prevent injury.
- Unsanctioned changes to the product are made at the opera-
tor's own risk and release the manufacturer from any war-
ranty obligations.

9.0.1 Fault: The unit will not start

1 Electricity supply interrupted, short circuit or earth fault in the
cable or motor windings
- Have the motor and wires checked by a specialist and
replaced if necessary.
2 Fuses, the motor protection switch and/or monitoring devices
are triggered
- Have a specialist inspect the connections and correct them
as necessary.
- Have the motor protection switches and fuses installed or
adjusted according to the technical specifications, and
reset monitoring equipment.
- Check that the impeller/propeller runs smoothly. Clean or
free it as necessary.
3 The moisture sensors (optional) have interrupted the power
circuit (operator-related)
- See fault: Mechanical shaft seal leak, moisture sensors
report a fault or shut down the unit.
9.0.2 Fault: The unit starts, but the motor protection
switch triggers shortly after start-up
1 The thermal trigger on the motor protection switch is incor-
rectly set
- Have a specialist compare the setting of the trigger with the
technical specifications and correct if necessary.
2 Increased power consumption due to major voltage drop
- Have an electrician check the voltage on each phase and
rewire if necessary.
3 Two-phase operation
- Have a specialist inspect the connection and correct it as
necessary.
4 Excessive voltage differences on the three phases
- Have a specialist inspect the connection and the switching
system and correct it as necessary.
5 Incorrect direction of rotation
- Swap the two phases from the mains supply.
6 Impeller/propeller impeded by adhesive material, blockages
and/or solid matter, increased current consumption
- Switch off the unit, secure it against being switched on
again, free the impeller/propeller or clean the intake port.
7 The pumped fluid is too dense
- Contact the manufacturer.

9.0.3 Fault: Unit runs but does not pump

1 No pumped fluid
- Open the container intake or sliders.
2 Intake blocked
- Clean the intake, slider, intake port or intake strainer.
3 Impeller/propeller blocked or obstructed
- Switch off the unit, secure it against being switched on
again and free the impeller/propeller.
4 Defective hose or pipeline
- Replace defective parts.
5 Intermittent operation
- Check the control panel.
9.0.4 Fault: The unit runs, but not at the stated operat-
ing levels
1 Intake blocked
- Clean the intake, slider, intake port or intake strainer
2 Slider in the discharge pipe closed
- Fully open the slider
3 Impeller/propeller blocked or obstructed
- Switch off the unit, secure it against being switched on
again and free the impeller/propeller
4 Incorrect direction of rotation
- Replace two phases on the mains supply
5 Air in the system
- Check the pipelines, pressure shroud and/or hydraulics,
and bleed if necessary
6 Unit is pumping against excessive pressure
- Check the slider in the discharge pipe and open it com-
pletely if necessary, use a different impeller or contact the
factory
7 Signs of wear
- Replace worn parts
8 Defective hose or pipeline
- Replace defective parts
9 Inadmissible levels of gas in the pumped liquid
- Contact the factory
10Two-phase operation
- Have a specialist inspect the connection and correct it as
necessary
11Excessive decrease in the water table during operation
- Check the supply and capacity of the system, and inspect
the level control settings and functionality

9.0.5 Fault: The unit does not run smoothly and is noisy

1 Unit is running in an inadmissible operation range
- Check the operational data of the unit and correct if neces-
sary and/or adjust the operating conditions
2 The intake port, strainer and/or impeller/propeller is blocked
- Clean the intake port, strainer and/or impeller/propeller
3 The impeller is impeded
- Switch off the unit, secure it against being switched on
again and free the impeller
4 Inadmissible levels of gas in the pumped liquid
- Contact the factory
5 Two-phase operation
- Have a specialist inspect the connection and correct it as
necessary
6 Incorrect direction of rotation
- Replace two phases on the mains supply
7 Signs of wear
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