www.blaubergventilatoren.de
13
Tower-V / Tower-H / Tower-V EC / Tower-H EC
TECHNICAL 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 require thorough cleaning once in 6 months.
Cleaning procedure:
1. Cut off power supply to the fan.
2. Partially dismantle the casing for accessing the contaminated parts of
the fan.
3. Clean the impeller blades with a dry soft brush or compressed air. While
cleaning the fan be careful not to displace the impeller counter weights.
Clean the fan casing with a wet cloth. Protect the electric motor against liquid
ingress.
4. Assemble the fan in the reverse order after cleaning.
QF
WARNING
Cut power supply to the fan off by turning the automatic electric switch QF to OFF position prior to
any maintenance operations.
Take steps to prevent activation of the automatic switch prior to fi nishing maintenance.
TROUBLESHOOTING
Fault
Possible reason
Troubleshooting
The fan does not
operate
No power supply or connection error.
Connect the fan to power mains. 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 the seller for troubleshooting.
Noise, vibration
The impeller is soiled.
Clean the impeller.
The screw connection is loose.
Tighten the fastening screws.
No fl exible anti-vibration connectors are installed.
Install the fl exible anti-vibration connectors.
Table 5. Possible faults and troubleshooting
