How do you program this . I had to reset and do not know for sure how to reprogram it.

Timer is not identified.
You posted under Honeywell/Aube timers:
Open following link to identify product and download manual:
http://waterheatertimer.org/Aube-timers.html

Add a comment if more help is needed and include timer model number and where the manual or wiring is confusing.

Upvote the help.
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