Open following links to identify timer.
If you have different timer, then add a comment.
http://waterheatertimer.org/pdf/DT300-series-manual.pdfhttp://waterheatertimer.org/Intermatic-timers-and-manuals.html#DT300I do not see a week button either, and sure enough the Intermatic manual says press the WEEK button to revise ON OFF times. The GE manual says exact same thing. And so does the Woods manual.
I think what the instruction means is this:
To revise programs, press Progam button as many times as needed to arrive at the program you want to change. For example program1 ON or program1 OFF etc.
Then reset the program as shown in step 5 using the Hour button to set Hour, and Minute button to set minutes, and day button to select the days or blocks of days (including all 'week' as one of the choices).
Both timers will not operate?
I test timers and a percentage arrive defective. There is no repair for defect timer. This timer has 1 year warranty.
There is no load rating on this timer, at Intermatic, GE or Woods. Timer is older style and probably rated for 500-800Watts incandescent light bulbs only.
Also test outlet with circuit analyzer to make sure polarity is not issue. This is a polarized timer, and outlet wiring must be correct for electronic timers.
Make sure each program has ON and OFF time. So set program1 ON, and then set program1 OFF. And make sure same days or blocks of days are selected for each.
When setting on and off times, make sure there are no overlaps or conflicts that cause timer not to function correctly.
Another thing is setting timer for 12:00 midnight. It's better to select 11:59pm so the day is clearly understandable to timer.
When reading complex manuals, I write out the steps until things are clear.
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