We have seen a few of these where all the lights flash (not an error code)
both horizontal and vertical.
Customer also complains of not drying but no error code, insulations checks on motor and heater elements ok.
Module and smart card changed and still showing above faults.
Just thought i would post the outcome of this issue.
Have found that the dryer NTC’s short or have a low insulation resistance reading after being in use for a while, this causes the lights to flash (not a fault code).
Changed the dryer NTC and the machine works fine.