I have no clue right now
My temp got up to 83.2 over night. I took the first heater out and replaced it with another yesterday. It was set at 79 and when I woke around 2 am to check...the heater light was still on! I have 4 petsmart thermeters in different locations so I can feel somewhat confident with the readings.
I have no submersible pumps other than the skimmer.
My chiller is still off. I can't have 5 degree temp swings in an hours time.
I know I cant have temps as high as 83.
I moved the heater from the sump chamber into the fuge chamber where flow is less turbulant. Once I did this ...and the tiniest tap of the heater itself, the heating light went off.
I wont be home from work until 6pm tonight....so...I guess I'll have to wait to see what happens