23
22
GB
GB
7. Cleaning
The filter should be checked regularly and cleaned when
necessary.
1. Unscrew sleeve nut
L
of the Water Computer by hand
from the tap thread (do not use pliers).
2. Remove filter from sleeve nut
L
and clean.
3. Screw sleeve nut
L
of the Water Computer back on to the
thread of the tap by hand (do not use pliers).
Clean filter :
L
8. Trouble-Shooting
Fault Possible
Cause
Remedy
No display appears
Battery inserted incorrectly.
v
Check polarity markings
match (+ / –).
Flat battery.
v
Insert new (alkaline) battery.
v
Check function by operating
manually
(man. On / Off)
.
Fault Possible
Cause
Remedy
No display appears
Temperature on the display
Display appears after
is higher than 60 °C.
temperature has dropped.
v
Check function by operating
manually.
(man. On / Off)
.
Programs cannot be
The current time and the day
v
Enter time and day of week
entered
of the week were not entered
(see 5. Programming).
completely.
Manual opening via the
Low battery power,
Batt.
v
Insert new (alkaline) battery
man. On / Off-key is not
indicator flashes
possible
Manual watering period is set
v
Set manual watering period
to
00 ::0000
.
to a figure greater than
00 ::0000
(see 5. Programming).
Tap turned off.
v
Turn tap on.
Watering program is not
Watering program has not
v
Read off watering program
being undertaken
been entered completely.
and modify if necessary.
(no watering)
Programs deactivated
v
Activate program
(Prog. Off).
(% Run-Time).
Program entry / modification
v
Make program entry /
during or just before the
modification outside the
start pulse.
programmed start times.
