A B C D E F Possible cause
Remedy
5)
- ✘ - - - - Water level in the tank too low during
operation
Check level sensor.
Check parameters. If necessary, repeat
parameterisation.
✘ - - - - - Temperature sensor in the winding has
tripped the pump because of an excessive
temperature rise in the winding.
The motor will re-start automatically once the
unit has cooled down.
- - ✘ - ✘ - Defective radial bearing in the motor. Contact KSB.
✘ - ✘ - ✘ ✘ Cutter is blocked (on US/UZS)
- Excessive solids content
- Impermissible solids
Unblock the cutter (⇨ Section 8.2.3 Page 43)
- ✘ - - - ✘ Deposits in the collecting tank Clean the collecting tank; in case of greasy
deposits, fit a grease separator.
- - - - - ✘ Check valve does not close tightly. Clean the check valve, screw the lifting screw
back as far as it will go.
- - - - ✘ - System-induced vibrations Check the flexible pipe connections
✘ - - - ✘ ✘ Defective level sensor Check level sensor. Clean or replace as
necessary.
NOTE
After any fault or malfunction, carry out a visual and functional inspection of the
lifting unit.
NOTE
If the lifting unit has been flooded, always carry out an inspection.
5)
The pump pressure must be released before attempting to remedy faults on parts which are subjected to pressure.
Disconnect the pump from the power supply!
9 Trouble-shooting
mini-Compacta
53 of 86
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