Ive just had a similar problem, system worked for 2 months, then.....

Outdoor board blew. It was the microchip which is on the underside of the board, it also blew the 25A fuse on the outdoor unit.

Checked compessor-all okay.

Replaced outdoor and indoor board and still get error 0.01.

We are going to change all the boards, again

If you ask me, I think Fujitsu are complete bottom end quality and always have been.

Been working with these for about 12 years for a company and the faults with PCB's and compressors never seem to end.