Maintenance
&
troubleshooting
30
DDE 1500
60000-52-03
Fault
Possible cause
Possible solution
Dust leaks and dust
trails at air outlet
openings.
Filter breakage
Shut the product down
immediately then clean it
completely and replace the
filter elements (filter
cartridges, filter mats, etc.)
with new ones.
Filter inadequately
assembled.
Check installation of filter
elements (filter cartridges,
filter mats, etc.).
Smoke development
or load running
noises of the fan
Imbalance in the fan.
Shut the product down
immediately and have
LISSMAC customer service
inspect the fan.
Rotor is scraping on the inlet
nozzle or the housing.
Shut
the
product
down
immediately and
- Check the fan for warping
and transport damage
- Check the position of the
motor in relation to the
bearing and the screw
connections.
- Have the fan checked by
LISSMAC customer service
Noises from the motor.
- Check hub position
- Check motor for bearing
damage; replace bearings if
necessary
- Have the fan checked by
LISSMAC customer service