I have "FAN" flashing on the controller display. Are there diagnostic bits etc I could examine to find which fan is causing the problem ? I know it's possibly the fan in the PSM but can't be sure.
is about the fan from the cnc,as a tip,the PSM,SPINDLE or SERVO fan are not flashing on the cnc screen,there are alarms on the PS,SP,SV led display for that and also alarms on the cnc alarm screen.
so one of 2 fans from your cnc is not working,replace it
Good luck