On your year model Winne
1. THAT solenoid you replaced should NOT have anything to do with the Chassis Alternator charging the Chassis battery.
2. That continuous duty solenoid you replaced does 2 things. When the inside dash switch is engaged on the DUAL indent, it sends a 12 volt signal to that solenoid to close and the chassis and Coach batteries are connected and the Chassis Alternator charges both battery banks. That DUAL position is energized ONLY when the Ignition key is ON.
3. The MOM spring loaded side of the switch is wired to the Coach batteries. When you push and hold MOM(momentary), it uses a 12 volt signal from the Coach batteries to engage that solenoid and combine the Chassis and Coach to start the engine when the chassis battery is low or dead.
4. Almost all motorhomes do not tamper with the Chassis maker Alternator to charge the Chassis battery when engine is ON. There are a few exceptions but very few. The add on controls and solenoids are to charge the Coach batteries when engine is running and to keep the batteries separated when the engine is OFF.
5. IF that solenoid you replaced also kept the chassis from charging, then I will bet someone has miswired the battery cables over the years. Doug
