Thank you for the response!
First here are the serial numbers, see attachment:
Second, to respond to your circumstances.
-we try to set the clock for fixed only, no Flex. This timer is used for simplicity of access by owners and not it’s algorythems, except the rain off function. Seek to avoid any seasonal shift change and set it for that purpose. Also, why would a seasonal shift watering 20 or 45 minutes downshift to 3 minutes?
-advanced settings usually only used by me during set up.
-adding or removing days would change only one station and by 90%?
Adding or removing days from a program should not change a single station of several on a program? At least it doesn’t on the 25 or so others I help users with.
I have the customer trying to stay observant with the clocks only online, to separate from the equation accidental taps on small phones.
Appreciate the help to assist these clients!
Spent much time, and they are quite willing, to figure this out, but the sudden shifts are disconcerting especially in the recent heat waves, when seasonal shifts of this sort are catastrophic.