make sure all the bars and wire connectors are clean
or if you take em out it would be a good idea to wire brush them
ive seen machines do the same thing from dirty connections (less than a year old machine ev100zx)
you might have cleaned them a little just by loosening and tightening them
if the issue returns wire brush all the connections between the 2, 5, the capacitor, choke/ reactor, and the spider assemblies
(for EV100 system)
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