Scenes don't activated

I have two scenes (day/night) to activate/deactivate the heater on my aquarium acording to temperature. I have 5 minutes after the one disabled and the other enabled. Between them is another one that turns off the heater (reset between scenes). When tha day scene enabled does no turn on the heater even the temperature is lower than the set.

Account :str858@yahoo.gr
Scenes: Day heater on, Day heater off, Night heater on, Night heater off.

Propably I am doing something wrong but I cannot find what!