11
Dynamics 440-M/B1
Dynamics 840-M/B1
GB
FAULT DISPLAYS
FLASHING FAULT LAMP
(Fig. 20)
If the rotating field of the power
supply lead is incorrectly connec-
ted, the circuit breaker prevents
the vacuum cleaner from being
switched on.
l
Switch off vacuum cleaner and
pull mains plug.
l
Have connection outlet
connected according to
standard (clockwise rotating
field) by electrician.
CONTINUOUSLY LIT FAULT
LAMP
(Fig. 20)
Overcurrent fuse and/or tempera-
ture monitoring unit for turbine
exhaust air has/have been triggered.
l
Leave vacuum cleaner switched
on and wait until fault lamp
goes out, then switch off.
l
Make sure exhaust air outlet
and cooling air inlet of motors
are not blocked and clear if
necessary.
l
Switch on vacuum cleaner
again.
ACOUSTIC FILTER WARNING
The filter element is extremely
dirty.
l
Clean filter element or replace
(see Section
Changing filter
element
).
l
Suction nozzle blocked, clean
suction nozzle.
l
Suction hose blocked, clean
suction hose.
CHECKING EXHAUST-AIR FLAP
(
Dynamics 840-M/B1
only)
Exhaust-air flap of stopped turbine
is jammed.
l
Release quick-lock screw (1) of
vacuum-cleaner rear panel by
turning 90°
(Fig. 2)
.
l
Tilt back vacuum-cleaner rear
panel (2) and unhook
(Fig. 3).
l
Check exhaust-air flap (3) of
stopped turbine
(Fig. 19)
.
l
Bond paper piece onto bolt (4)
of exhaust-air flap
(Fig. 21)
.
l
Switch vacuum cleaner to
position
I
, then to position
II
.
Flap must move.
l
If exhaust-air flap does not
move, switch off vacuum cleaner
and free up exhaust-air flap.
l
Check for smooth movement
by switching vacuum cleaner to
position
I
first, and then to
position
II
. If exhaust-air flap
still does not move, switch off
vacuum cleaner and inform
Wap Customer Service.
l
Hook in vacuum-cleaner rear
panel (2) and tilt forward
(Fig. 3)
.
l
Lock vacuum-cleaner rear
panel by pressing in quick-lock
screw (1)
(Fig. 2).