I wonder if anyone can advise on my problem. I have looked at similar topics and see that it is often the C17 on the main circuit board? The difference I have is that when I switch the machine on, all the lights flash for anything from a couple of times up to 30 secs. The machine then seems to work normally. When this started, I ordered a reconditioned main circuit board. I had to get into the rear of the machine to check whether this was a Mk4 or Mk8 board and checked all the connectors. The fault disappeared and so I returned the board without fitting. A few days after returning, the problem has started up again. Can anyone tell me if this is likely to lead to a new circuit board being required or suggest what the problem might be?
