Troubleshooting - Gardena Master Operator's Manual

7. TROUBLESHOOTING

Problem
No display appears
Manual watering is
not possible using the
button
Watering program is
not being undertaken
(no watering)
12
Possible Cause
Sleep mode is activated 5 minutes
after the last entry is made to save
energy.
Battery is inserted incorrectly.
Battery is flat.
Temperature on the display is higher
than 70 °C.
Low battery is continuously displayed.
Tap is turned off.
Controller is not connected.
Minimum pressure of 0.5 bar not
available.
Program entry / modification during or
just before the start pulse.
Valve was opened manually previously. v Avoid possible program overlaps.
Tap is turned off.
Soil moisture or rain sensor registers
damp.
Controller is not connected.
Remedy
v To reactivate the display, press
any function button.
v Check the polarity markings
match (+ / –).
v Insert a new (alkaline) battery.
v Display appears after the
temperature has dropped.
v Insert a new (alkaline) battery.
v Turn the tap on.
v Mount the controller on housing.
v Ensure a pressure of at least
0.5 bar and run the program again.
v Make program entry / modification
outside the programmed start
times.
v Turn the tap on.
v If dry, check the setting / location
of the soil moisture / rain sensor.
v Mount the controller on housing.