Clean built-in filter:
w
e
q
9
ß
A
1. Change the switch
q
to
O.
2. Disconnect mains plug.
3. If necessary, close all the
shut-off devices on the intake
side.
4. Unscrew the lid
9
of the filter
chamber with the spanner
ß
A
provided.
5. Draw out filter unit
w e
vertically upwards.
6. Hold cup
w
firmly, turn
filter
e
anti-clockwise
1 and
draw out
2 (bayonet fitting).
7. Hold cup
w
under running water and clean the filter
e
e. g. with a soft brush.
8. Refit filter again in reverse order.
9. Switch Electronic Pressure Pump on again (see 4. Operation).
1
2
w
e
Cleaning the check valve:
r
t
q
Art. no. 1757
1. Change the switch
q
to
O.
t
r
q
Art. no. 1758
2. Disconnect mains plug.
3. If necessary, close all valves
on the intake side.
4. Open all pressure side outlets,
so that the pressure side is
depressurised. Afterwards,
close the tapping points again
in order to prevent the con-
nected lines running empty via
the Electronic Pressure Pump.
5. Screw out the cover
r
of the
check valve using a suitable
tool.
6. Remove the valve body
t
and
wash it under running water.
7. Refit check valve again in reverse order.
8. Verify that the check valve is able to move freely.
9. Switch Electronic Pressure Pump on again (see 4. Operation).
CAUTION!
Do not operate the pump without the check valve.
7. Troubleshooting
DANGER! Electric shock!
v
Unplug the cable at the mains before
troubleshooting.
Work on the electrical parts must only be carried out
by GARDENA Service Centres.
21
EN
