Thanks for the help. Here is what we found. We replaced the LN board but now we have another issue? notes from mechanic: I replaced the LN board then found blown pico fuse ..traced it to an L24 board with a blown semi conductor. And , replaced it. All the boards were then online and took a call , but, the valve never got power to the coil from the 188E bd. It would just bypass until it went on low oil timer. So the up high speed coils were lit on the I/O screen but, no magnetism on the coils themselves. I wasn't able to determine the issue but these faults are indicating software or. 188e board needs replacing. I reinstalled original LN board thinking it was in need of programming. But , it made no difference. Car is on inspection in MR with the left bypass switch.