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I have the intermatic ST101 series timer The lights do not work. The window that tells the time is completely blank. Does this mean I should replace the battery?

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Replacing the battery would be a good place to start. They don't last more than 2 years.

Posted on Aug 24, 2010

  • mull47 Aug 24, 2010

    Thank you, Stephen

  • Louise271 Feb 23, 2011

    I have these installed in my 116 unit condos and have had to replace almost 50% at this time. They are only 2 years old!! You can change the battery but it might just be defective like mine are!


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