Can I thank you all for your inputs. Western, you were bob on mate. Replaced the failed near side repeater lamp and the problem went away. Can’t fathom why? So with a failed repeater lamp ( not LED) on one side, but LED indicators front and back, it causes such an imbalance in the current flows when using the indicators. That beats me. But that’s why there are web sites like this I guess!
cheers
Jim