I am new to the forum and new to swimming pools too.
My Raypak pool heater is giving me some troubles. The digital display shows REM off and pool temp.
It won't bring on the other settings- pool, spa etc.
I tried to reset it by holding down all three buttons- REM on will come on momentarily, but then will go back to REM off and won't let me do anything.
thank you very much for your help