We have a 40 foot, 2005 Santiam with 350hp C7 engine.
A few weeks ago the Alt Chg warning light & alarm came on. A diesel mechanic changed the alternator unfortunately the alarm did not go off. The mechanic checked the connection and said everything was working correctly.
A few days later we tried starting the engine and the chassis batteries were completely dead. We replaced the batteries. We finally called the manufacturer of the alternator and found out that the wrong one was installed.
We had the correct one shipped to us, it was installed by a different mechanic, this time an RV mechanic -Alt Chg warning still on.
He found additional issues with the relay & solenoid.
We replaced both -Alt Chg warning still on.
The bus starts right up and according to the gauges the batteries are charging. We don't know what else to do. Any help with this issue is greatly appreciated.
