how to wire timer switch

⏲️ switch wiring

[@stephencotreau9602]

Thank you VERY much for such a clear instructional video!

[@riuzakyrodriguez1486]

My friend, im looking for help, i have a timmer like the one you show us how to use on your video, but mine is not working anymore the On indicator light keeps blinking and it does not turn on the pump connceted to it, i have searched for several reasons to why this is not working but none help me, do you know why this can be happening?