9 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.
NOTE
Before performing any work on the pump's internal parts during the warranty
period please always consult the manufacturer. Our after-sales service will be at
your disposal. Non-compliance will lead to forfeiture of any and all rights to claims
for damages.
If problems occur that are not described in the following table, consultation with
KSB’s customer service is required.
Pumps fail to start in automatic mode or cut out shortly after start-up. Lack of water
is indicated.
Pressure booster system does not start up.
Pumps running but not delivering water.
Insufficient delivery of pressure booster system.
Discharge-side pressure too low.
Discharge-side pressure too high.
Leakage at mechanical seal
One/several pumps/motors overheated.
Motor protection switch(es) triggered. Warning LED lit.
Pump(s) do(es) not stop.
Pumps start too often (more than 30 start-ups per pump and hour).
One/several pumps/motors overheated.
Table 10: Trouble-shooting
A B C D E F G H I
J K L Possible cause
Remedy
2)
-
-
✘ ✘
-
-
-
✘
-
✘
-
- Pumps and/or piping are not
completely vented or primed.
Vent and/or prime.
✘ ✘ ✘ ✘ ✘
-
-
✘
-
-
✘
- Shut-off valves (partially) closed
Check, open as necessary.
✘
-
-
✘ ✘
-
-
-
-
✘ ✘
- Strainer clogged (inlet-side pressure
reducer)
Clean.
✘
-
-
✘ ✘ ✘
-
-
-
✘ ✘
- Inlet-side pressure reducer set
incorrectly
Check, adjust as necessary.
-
-
✘ ✘ ✘
-
-
✘ ✘ ✘ ✘
-
-
Check valve in bypass line defective Replace.
✘ ✘
-
-
-
-
-
-
-
-
-
- Inlet-side shut-off valve closed
Check, open as necessary.
-
✘
-
-
-
-
-
✘
-
✘
-
- Discharge-side shut-off valve closed
or defective
Check, open as necessary.
✘
-
-
✘ ✘
-
-
✘
-
✘ ✘
- Inlet pressure lower than stated in
the purchase order
Contact KSB.
-
✘
-
-
-
✘
-
-
-
-
-
- Inlet pressure higher than stated in
the purchase order
Contact KSB.
✘
-
-
✘ ✘
-
-
-
-
✘
-
- Start-up pressure set too high
Check setting.
-
✘
-
-
✘ ✘
-
✘
-
✘
-
✘
Pressure transmitter set incorrectly
or defective
Check setting.
-
-
-
-
-
-
-
✘
-
-
✘ ✘
Pre-charge pressure of the
accumulator too low
Restore nitrogen cushion.
A
B
C
D
E
F
G
H
I
J
K
L
2)
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
30 of 40
Surpress Feu SFE.3
Содержание Surpress Feu SFE.3
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