If its a regular switch. If that doesnt work then you may need a new timer.

Setup Guide In Wall Programmable Digital Timer Switch Enerlites Het01
Light timer not working. Why wont the timer for my light switch work. Often switch boxes do not have a white wire as a normal switch does not need one. Ill show you the finished apartment how to fix an electric timer. Second is that the timer is defective. First and most likely is that this switch requires a white neutral wire to be connected in order for it to work properly. If power is coming to the timer motor you should be able to clearly see the gears moving through the small window.
Without a neutral the timer will do goofy things if it works at all. If the timer activates the connected light at the wrong times reset the current time configuration of the. Try temporarily setting the times and days for a time very soon so you can conduct a quick test to be sure the timer is now working. Thanks for visiting have an awesome day. If not then check the breaker that the time clock is connected to turn it off and back on again. If your landscape lighting timer isnt working try resetting it by pressing the reset restart or r button in your transformer.
With a small flashlight look into the visual motor check window near the top of the timer mechanism. Confirm that the timer has been programmed correctly if it fails to turn on. Then set it up again. After a successful test you can reset the timer to your preferred schedule. Zones not being watered.
Gallery of Light Timer Not Working

