Palazzo Not Charging from Engine Alternator

rgatijnet1 wrote:

JamesWillard wrote:
Thanks very much. I went through the BIRD and Trombetta troubleshooting. I found that the Trombetta Solenoid is ALWAYS energized. Disconnected the "Relay" wire at the BIRD and it de-energizes. With it energized, the Coach Batteries are still not charging. That's not even possible since the Chassis batteries are charging normally. However, the Coach batteries charge normally on GEN or Shore Power. I've been checking wiring and found nothing loose. Have not really gotten started checking fuses . . .

Have you tried jumper wires around the solenoid to see if it is functioning as designed? Just because it is energizing does not mean that all of the contacts are operating properly.

EXACTLY!!!!!!!!!!!
There's many, many documented cases on here and IRV2 concerning that Trombetta engaging but, NOT CONDUCTING anything. Mine was like that TWICE. The contacts get arc'd up and, have a sort of carbon on them and, even though the mechanics of the solenoid are working as designed, the ability to conduct electricity is hampered by that carbon buildup. You'd need to check it with a volt ohm meter when the engine is running, to see what kind of voltage is at one side, then do the other side to see if it compares.
Scott