Hi Guys, My LGB MOGUL 2019s analog factory chuff stopped working and I can not figure out why. When I remove the battery from the tender I can hear a very faint chuff sound at low speed. When the battery is reconnected all I get is a constant hissing noise. I have been told it may be a broken wire in the wire harness. Could the 6pin connector be bad ? Are the harness’ easy to replace? Any info would be greatly appreciated. Thanks, Rob near Chicago