09302-52-00 DUSTOMAT 21-67 H 17
Failure Possible cause Possible solution
Motor stalls / motor won’t
restart
Motor protection
triggered by frequently
turning the device on and
off
On devices with
potential-free start-up,
the motor protection
must be reset manually.
(The motor protection is
inside the switch box.)
The device has shut off
during cleaning.
The electromechanical
device for up and down
movement is dirty, which
has triggered the motor
protection switch.
Clean the frame (for
disassembly, see the
“Filter replacement”
section).
Suction performance
diminishes /
or no suction
Filter clogged
Suction hose clogged
Dedust filter
In a vacuumed area,
hold the hose vertically
and bang it out with a
rubber mallet.
Warning signal for low
suction volume persists
despite filter dedusting.
Fine dust is sucked right
back to the filter.
Pressure controller set
too weak
Dust collection container
too full
Filter pores clogged in
main filter
Dedust several times
with device at rest and
let the dust settle (1 min.)
Change the pressure
controller after consulting
with ESTA
Replace dust bag
Replace filter
If dust escapes or clouds up from the air outlets, if smoke develops or the
fan runs loudly, the device must be disconnected from the power
immediately!
The person doing the work should always wear a respirator mask (filter
mask with particle filter, filter class P3) and gloves.
Before opening the switch box, make sure to turn the main switch to the
“0”
position and pull the electrical plug! Work in the switch box must be
performed only by an electrical expert or an appropriately trained person.
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