Problem
This troubleshooting article applies only to post 2020 machines
If the machine is not operating and the” information light” next to the power button and the firmware LED on the logic board flashes with the following eight-bit pattern as described here:
0011 0000
Where 0 indicates a short pulse which is 1/4 second and 1 indicates a long pulse which is 1 second long.
Since this is a high priority error, the internal piezo speaker will also output an accoustic signal with the same pattern.
This indicates that the electronics enclosure fan is not being detected as spinning.
Solution
Check if the fan is spinning:
If it is spinning:
The cable may be malfunctioning. Replace the fan.
Logic Board could be malfunctioning
If it is not spinning:
The fan is malfunctioning, replace the fan.
Logic Board could be malfunctioning
