Question
Strange problem: my automatic sprinkler system stopped working and I found out that it's a morning issue only. If the system is set to start in a morning hour (or I start it manually from the panel in a morning hour) it attempts to start but shuts down immediately (you can her the sound of the valve). On the other hand if I start it during an afternoon hour it works normally without any problem. What could possibly be the reason? Is it related to the water temperature? Thanks very much for your advice.

Answer
Hi Eyal,

Probably the water source does not have enough pressure in the mornings or not water at all.
Provide me with more details about your system, water comes from a well, lake/canal, city
Do you use a pump?
Controller brand and model

Thanks
Guillermo