Noma se12 timer outdoor

Copy following link to help identify timer:
http://waterheatertimer.org/Woods-timers-and-manuals.html#outdoor

I test timers.
Commercial grade timers last many years.
Noma is a brand name apparently used by many different manufacturer's to package products, and might be the 2nd line timer from Woods.
Don't expect timer to last more than year or two... maybe 6 months.
Copy following link for general troubleshoot if you have timers fail frequently, it might be electrical problem:
http://waterheatertimer.org/Woods-timers-and-manuals.html#troubleshoot
Open links above, then add a comment and say which timer you have and what specific problem is encountered

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