BANDELIN Sonorex Technik, Operating Manual, Page: 18 / 24

18 / 24 23656a GB/2019-06
1 electronic GmbH & Co. KG • Heinrichstraße 3-4 • 12207 Berlin • Deutschland • info@bandelin.com
Fine fi lter: If the pressure in the fi lter housing is too high, the pressure switch will
switch the pump off, and the red indicator light on the Off button will
illuminate.
Replace the
fi lter cartridge.
Rinse the fi lter housing out thoroughly before replacing the fi lter cartridge.
After inserting a new fi lter cartridge and opening the three-way ball valve, check the
liquid level in the ultrasonic bath and fi ll if necessary.
This is particularly true for small cleaning tanks = small bath volume.
The fi lter aggregate can then be started again using the green On button - the red
indicator light will switch off.
6.2 Troubleshooting
SONOREX TECHNIK fi lter aggregates are robust constructions designed to offer
maximum reliability.
Nevertheless, the possibility of a malfunction due to a defective component can never
be ruled out entirely.
Caution!
Repairs must only be performed by authorised, quali fi ed personnel!
Unauthorised repairs will void the warranty!
Seq.
no.:
Malfunction Possible cause(s)
1 Filter aggregate switches off, red
indicator light illuminates. – Fine fi lter clogged
– Return fl ow throttled too far
– Return fl ow blocked, kinked or pinched
2 Filter aggregate switches off, red
indicator light does not illuminate. – Mains power failure
– Defective fuse
3 Filter aggregate is running,
bubbles in inlet, little or no
fl ow
volume in return fl ow.
– Bath drain closed
– Inlet blocked, improperly sealed, kinked
or pinched
– Pre- fi lter clogged
4 Filter aggregate running, hoses
fi lled but no fl ow volume
– Pump blocked, magnetic coupling
slipping