The first time the system is turned on, the battery may be fully charged or flat. If the pump is fully charged it may run for a few hours, but it can take between 24 and 48 hours to regulate itself and operate normally. During this period there may be extra watering, but rest assured that this is completely normal and will settle down.
If the battery is flat and the pump will not start -turn the knob to 5 and leave in the sun for 3 hours and it will start automatically. Afterwards it will operate normally.
The pump starts every 3 hours and runs until the battery voltage starts to drop. The more the sun shines, the more the charge and the more it waters.
A constant LED light indicates your pump is running
A flashing LED light indicates the unit is in charging mode