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Fault
Cause
Remedy
6. Noises
a) Cavitation in the pumps
Clean suction line
b) Pump stiff due to incorrect
pump shaft height setting
(friction resistance)
Correct the height setting of the
pump shafts.
Call out the Biral service team
7. Very high switch-
ing frequency
a) Incorrect pressure in pressure
vessel with membrane lining
Check inlet pressure in pressure
vessel with membrane lining.
Call out the Biral service team
b) Setting of system stop function
(special function)
not optimal
Optimise.
Call out the Biral service team