1) I have instructions for Westek TE04WHB which is same-similar as TE55WHB and is also same as GE 15057
Open following link to identify timer and download manual:http://waterheatertimer.org/Woods-timers-and-manuals.html#6-24
2) If this is not your timer, then browse the page to see if your timer shows. Manuals are posted with each timer.
3) Add a comment and describe timer in detail so I can cross check my files for same-similar timer
Add a comment for more free help.
Also take advantage of fixya phone service.
For a price, expert speaks with you over phone while you work on timer or any do-it-yourself project.
Fixya is always less expensive than a service call.