Here it goes. MTH Premier E-6 ABA proto 3. Running fine, then rear A unit shuts down. Killed power. Reset engine in DCS controller. Still nothing. Pulled shell, didn't see anything unusual. Put back on track without shell, hooked back up to AB combo. Started right up. Pulled ABA out of siding to massive sparks tripping the bricks. Reset bricks. Took off switch frog put back on siding. Powered back on and B unit started smoking. Removed B unit and connected both A units. Powered up and rear A unit started smoking. See pics. Melted wiring. Thoughts???
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