I just had a call from my technician that he went on site to replace the main board for the EL 6 plc of the SB 155 that the monitor gives alarm level fail.
He told me that we still have "level fail" alarm.
The alarm appear directly after we press enter to start a program.
At that time, the drum is with no water at all.
Also if we disconnect the hose from pressure switch, we have the same alarm..
The machine does not even try to start the program. After choosing the program, we get directly the alarm "lever fail".
So??