As mentioned in the title i have an older Balboa 2000LE series board that is throwing SN errors now that i have filled it back up.
This model has the pressure switch and 1 temp sensor(not 2 like their M7 has?)
At first it was doing nothing and the SN error would come, so I bled the heater from the sensor. It was full of air so i figured that was the issue.
I turned it on, and it clicks on all the pumps turn on for a half second, then everything turns off again and says SN. So i'm moving in the right direction im just not sure what else can be causing this SN issue? I dont think the pressure switch would cause this its just the 1 sensor correct? Its not flashing, there is no SN and temp, its just a solid SN.