Faults And Troubleshooting - Systemair Rvk Sileo Betriebsanleitung

10.4

Faults and troubleshooting

Problem Possible causes
Fan does not run Rotor imbalance
smoothly
Adhesions on the rotor
Material decomposition on the rotor
due to aggressive material conveyed
Wrong direction of rotation of rotor
Deformation of rotor due to exces-
sive temperature
Air output of fan Wrong direction of rotation of rotor
too low
Excessive pressure losses in the lines
Flow regulators not or only partly
open
Intake or pressure ducts are blocked
Grinding sounds Intake line is strained
when starting or
operating the fan
Fan does not reach Defective motor winding
nominal speed
Incorrectly configured fan
Motor does not Mechanical blockage
rotate
Faulty supply voltage
Faulty connection
Temperature monitor has responded
Electronics/motor Insufficient cooling
overheated
Ambient temperature too high
incorrect operating point
Tab 8: Troubleshooting
Remedy
Contact the manufacturer
Contact the manufacturer
Contact the manufacturer
Contact the manufacturer
Contact the manufacturer
Install new motor and impeller
Check mounting
Contact the manufacturer
Change the line routing
Check opening position on site
Remove the blocks
Loosen intake line and realign
Contact the manufacturer
Contact the manufacturer
Switch off, disconnect from the power
supply and remove the mechanical
blockage.
Check the supply voltage, re-establish the
voltage supply
Disconnect from the power supply, cor-
rect the connection, see circuit diagram.
Allow the motor to cool down, find and
resolve the cause of the fault, release the
reactivation lock if required.
Improve cooling.
Lower ambient temperature.
Contact the manufacturer
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