1) Electronic devices don't work as expected and have short lifespan when circuit is not clean.
Buy cheap circuit analyzer at home center and test outlet on same circuit breaker.
Contact local electrician to fix any problem.
2) Intermatic has excellent customer service:
http://www.intermatic.com/customer%20service.aspx3) I test timers. 4-6% arrive defective. Return timer for exchange.
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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.