The hunter timer control require a 9V battery to work thu a loss of power, install inside door cover.
Timers need to be set differently for regular spray heads Vs rotators, rotators need be set about 2X as long in run time.
When the system is new it only set to use program A, there are two more B&C that can be programmed independently.
For example the lawn zones can be on A and the plants on B
Or the lawn in heavy shade in A high sun in B
These can be set to run every 2, 3 4 or any number of days apart.
Zones can be set to run odd or even days.
There are many other options, do a search on Utube for a lot step by step info.
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