J101 and J102 connectors - far right hand side of the largest green board of the backbox.
With the machine off, unplug them and plug them back in again a few times.
+1 - I found with my WPC machines that this more often than not was the issue and not the bridge rectifiers. I replaced the headers and connectors and the problem was solved. I would suggest starting at the connectors first, then if its still resetting start looking at the BR's.
'Parts wise' the BR's are easier to obtain (Jaycar etc) and don't require any special tools (ie crimper's) - so perhaps this is why they tend to get done first.
Andy
