Fresenius K machine giving me an E.08 alarm every morning when the machine is started up and the prime button will not work. I have replaced the LP955 board and still will not go away. But if I turn the machine off then back on this will go away?!?!?,, anyone have any suggestions. the bulletin said it's caused by a 24V problem somewhere i think it says.

check the ribbon cable to the blood pump module. Also check your 24 volts must be between 22.8 to 28.0 volts.

and what if the 24 volts is out of range?

if its not one of the board on the blood pump mol. it might be the blood pump it self.

My supervisor replaces the blood pump mod. everytime we get that error. It fixes the problem everytime