The pool has been filled for 2 weeks now so too early to turn on the heater (pentair mastertemp 400) but I wanted to see if it at least works (has power). And apparently it doesn’t - no light or anything on the display. Pumps, intellivalves and intellicenter work. Is there anything I need to do the very first time I turn on the heater?
I will call the electrician who installed it to see what they know about it.
I will call the electrician who installed it to see what they know about it.