Page 23 - Manual LEF

Possible Malfunctions

Problem Cause Rectification

fan does not run No voltage. Check the power
(No power supply for supply at the
the unit) socket

fuse defect change the fuse

fan does not run malfunction of device repair by a
or control electronic specialist
(specialist dealer)

not enough filters are saturated filter replacement
suction capacity
air passage is blocked check of air inlet
and outlet
flow rate at minimum increase flow rate

bad filtration filters are clogged up filter replacement

filters are not in the check filter
right position installation
(put it in the right
position)

ACD TD - issue 09/2017 page 21