1). If Dry Ctrl % is higher than wet Ctrl %, controller will beep to alarm. Check if the set is right.

2) Under moisture mode, if the irrigation duration exceeds the Maxirrigation time limit, and the soil moisture still does not rise beyond the set Dry Ctrl, the controller will give an alarm of beep too.

Check if the max irrigation time is too short, or if the water pipes are broken / blocked, resulting in no water being irrigated towards the moisture sensor. Push any key would stop the beep.If the fault is still exist, it will beep alarm again at the end of the next irrigation cycle.