Troubleshooting; Possible Faults - SPT P 215 Originalbetriebsanleitung

Troubleshooting

9 Troubleshooting
WARNING
Risk of crushing or drawing in at the rotor
Danger of cutting injuries when reaching into the impeller

Disconnect the pump from the power source before performing any repair or troubleshooting
work.
 Secure the pump against accidental switch-on.
9.1

Possible faults

Fault Possible cause(s)
Pump does No power supply
not start
Supply line damaged
Impeller blocked
Motor protection Impeller blocked
device is triggered
Voltage too low
Frequency too high (60 Hz)
Pump overheated
Rated current incorrectly set
after repair
Motor defective
Overload due to excessive
solids content
Conveying Impeller worn or damaged
capacity
Hose blocked
(quantity/rate)
Inlet screen blocked
too low
Wrong direction of rotation
Increased running Bearing failure
noises
Pebbles/gravel in the inlet
screen
Operating Instructions for Submersible Pump Series P
Remedy
Check the power supply and restore it if necessary
Check the supply line and replace it if necessary
Check the impeller and remove blockage or clogging if neces-
sary
Check the impeller and remove blockage or clogging if neces-
sary
Check voltage supply and establish nominal voltage
Check mains frequency and establish nominal frequency. If re-
quired, change the model
Check whether the pump delivers sufficient liquid, clean inlet
screen if necessary
Avoid quick-suction mode
Have the adjustment of the motor protection module checked
and adjusted by a specialist
Check the stator and replace it if necessary
Dilute medium (max. 20 % solids content)
Clean inlet screen
If the intake contains too much sediment, place the pump on a
raised concrete block
Replace impeller
Remove blockage. Lay hose straight and without kinks
Clean inlet screen, avoid sediment transport
Check rotating field and, if necessary, establish clockwise ro-
tating field using phase inverter or check connection
Replace the ball bearing
Clean inlet screen
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