BA046BB1118A13
21
Fan turns but there is no
or not enough airflow.
Rotation speed of the fan
too low
Observe star / delta
switching.
Air flow interrupted
Check duct system
(e.g. suction, filter, sealing
caps).
Calculated pressure
does not correspond to
the real value.
Check fan selection.
Unfavorable installation
conditions
Check the installation
situation.
Vibrations / noises in fan.
Chafing of impeller
Chafing of impeller.
Check impeller for dirt and
clearance.
Check mounting of Impel-
ler and inlet
cone
Deformation
Stop fan immediately.
Contact Rosenberg
support
Dirty impeller
Clean impeller
Damaged ball bearings
an impeller.
Damaged ball bearings.
Stop fan immediately.
Contact Rosenberg
support
RCD-Switch or fuse trips.
Ground fault or short
circuit.
Check if the cables are
damaged or
moisture is present.
Defect of the motor
Contact Rosenberg sup-
port
16 Notizen
Notes
