8 Trouble-shooting
WARNING
Improper work to remedy faults
Risk of injury!
▷
For any work to remedy faults observe the relevant information in this manual
or in the relevant accessory manufacturer's product literature.
If problems occur that are not described in the following table, consultation with the
KSB customer service is required.
Pump discharge pressure is too low
Excessive discharge pressure
Excessive flow rate
Pump delivers insufficient flow rate
Excessive power consumption
Pump is running but does not deliver
Pump stops during operation
Vibrations and noise during pump operation
Impermissible temperature increase in the pump
Excessive bearing temperature
Excessive leakage at the shaft seal
Motor is overloaded
Leakage at the pump
Table 20: Trouble-shooting
A B C D E F G H I
J K L M Possible causes
Remedy
22)
✘ ✘ ✘ ✘ ✘ ✘
-
✘ ✘
-
-
✘
- Operating point B does not match
the Q and H performance data
calculated in advance.
▪
Re-adjust to duty point.
-
-
-
-
-
✘
-
-
-
-
-
-
- Pump and/or piping are not
completely vented or primed.
▪
Vent.
✘
-
-
✘
-
✘ ✘ ✘ ✘
-
-
-
- Supply line or impeller clogged
▪
Clean the impeller.
▪
Check system for impurities.
▪
Remove deposits in pump
and/or piping.
▪
Check any strainers installed/
suction opening.
-
-
-
-
-
✘ ✘ ✘
-
-
-
-
- Formation of air pockets in the
piping
▪
Correct suction conditions.
▪
Alter piping layout.
✘
-
-
✘
-
✘ ✘ ✘
-
-
-
-
- Suction head too high (NPSH
available too low) / water level too
low
▪
Check operating mode.
▪
Correct suction conditions.
▪
Increase suction head.
▪
Increase back pressure by
throttling.
▪
Install pump at a lower level.
▪
Alter suction/inlet line, if
piping losses are too high.
A
B
C
D
E
F
G
H
I
J
K
L
M
22)
Pump pressure must be released before attempting to remedy faults on parts which are subjected to pressure.
8 Trouble-shooting
Omega / Omega V
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Summary of Contents for Omega
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