autopilot only going up to 50% output?

[tenax]

i have a softtouch with an sc36 cell..only ran for about 2 months after i installed it last season. no error lights, salt level at 3500ppm, good flow rate. i can't remember if i tried to set it higher than 50% output last year. i think i did for kicks for a few minutes but didn't need to run it that high and it was in the 70s to 80s air temp at the time. i've never had it going when the water temp is this cold still so i'm thinking maybe it limits the output level when temp is this chilly still? (it's about 50-55C overnight..about 63 daytime at this point.) cell power setting is at 1, normal on the cycle. i get 3 clicks by the way at the 50% light (where i press once to get it to 50% then i press twice more and see the light get stronger each time..then no change if i press again.

ps- i note when i fired it up this morning that it didn't go to 50% itself. started about 2 green lights up only.