Max Change 020 M Then LT1 OFF
In my words: "If the light is switched off it will stay off for 20 minutes before it can/will turn back on."
If you want to use the controllers built in seasonal temperature variation function you add 'RT' to the program. Specifically, that program is unnecessarily complicated. I just did it that was so that everything would look consistent. All it is there to do is shut off the heater if the temperature probe becomes disconnected because this causes the temperature reading on the controller to drop significantly.
The float switch is just behind the overflow in the top left corner of my tank.
