KSB Calio S, Installation & Operating Manual

Page: 46 / 52

9 Trouble-shooting
46 of 52
Calio S
1157.8117/01-EN
9 Trouble-shooting
WARNING
Improper work to remedy faults
Risk of injury!
▷ For any work performed to remedy faults, observe the relevant information
given in this operating manual and/or in the product literature provided by the
accessories manufacturer.
If problems occur that are not described in the following table, consultation with the
KSB service is required.
A Pump is running, but does not deliver
B Pump does not start up or pump running irregularly
C Pump running but not delivering water.
D Noises during pump operation
Table 21: Trouble-shooting
Error value
Possible cause Remedy
5)
A ▪ See Error messages
(
ð Section 7.3.5, Page 41)
▪ Spanner symbol shown on display /
Service mode activated
▪ Reset the control system. Check the power supply and fuses.
▪ Disconnect the plug (power cable) or press control buttons
(+) and (-) simultaneously for 5 seconds until the spanner
symbol disappears from the display (Service mode
deactivated).
B ▪ Impurities in the pump ▪ (
ð
Section 8.1, Page 42)
B ▪ Blockage in the pump ▪ (
ð
Section 8.1, Page 42)
C ▪ Air in the system
▪
Shut-off elements closed
▪ Vent the system and the pump. (
ð
Section 6.1.2, Page 25)
▪
Open the shut-off elements.
D
▪
Power too high
▪ System pressure too low
▪ Air in the system
▪
Pump running dry
▪
Reduce the discharge head setpoint.
▪ Increase the system pressure by filling more water into the
boiler.
▪ Vent the system and the pump. ( ð Section 6.1.2, Page 25)
▪ Prime the pump. (
ð
Section 6.1.2, Page 25)
5 Release pump set pressure before attempting to remedy faults on parts which are subjected to pressure.