I turned it on last night manually/early due to daylite saving time changing. Didn't have time to alter the timer by the hour as I was late for something. The timer is supposed to shut off at 4 am but it was still on this am at 10am. I tried to manually shut it off with the sliding "toggle" switch at the top... it moves either to the left or to the right. The left side shows a clock registering 3:oo and the right side registers a clock showing 6:00. (Personally, these 2 symbols make no sense at all to me. ON/OFF would be more sensible.) Anyhow, I cannot shut the lites off now, no matter which way I turn the toggle switch. I have used your timers on this system of lites for 18 years... so I am not a novice using them. I even disconnected the power source to the timer twice, switching the manual over ride slowly each way. The lites are still on H E L P