8
www.blaubergventilatoren.de
Iso-K
MAINTENANCE
Disconnect the fan from power mains prior to any operations related to
servicing and repair works. Make sure the rotating parts have come to a full
stop.
The fan technical maintenance consists in the periodic cleaning of the
fan surfaces.
The impeller blades required thorough cleaning once in 6 months.
Cleaning procedure:
cut off power supply to the fan;
QF
open the fan swivel panel;
clean the impeller blades with a dry soft brush or compressed air.
Avoid liquid dripping on the motor and inside the electronic compartment.
While cleaning the fan be careful not to displace the impeller counter
weights. After cleaning perform all the operations reverse.
QF
ATTENTION
Cut power supply to the fan off by turning the automatic electric switch QF to OFF position.
Take steps to prevent activation of the automatic switch prior to finishing maintenance.
TROUBLESHOOTING
Fault
Possible reason
Remedy
The fan does not
operate.
No power supply or connection error.
Make sure of correct power supply, otherwise troubleshoot the
connection error.
Jammed motor, soiled impeller blades.
Remove the motor jam, clean the impeller blades.
Automatic switch
tripping.
Short circuit in power grid.
Turn the fan off and contact your seller for troubleshooting.
Noise, vibration.
The impeller is soiled.
Clean the impeller.
The screw connection is loose.
Tighten the fastening screws.
No flexible anti-vibration connectors are installed.
Install the flexible anti-vibration connectors.
Table 4. Error list and troubleshooting
Iso-K_v.1(2)-EN.indd 8
10.08.2015 15:21:03
