04-13-2022, 04:05 AM
Ok, got it. Built in regulator.
Look at this diagram. https://f01.justanswer.com/idrdb/c84b5ca...0-4900.pdf
With the internal regulator, you still have to have a power line that turns on when the ignition is ON. Since the alternator worked on the bench with correct wiring, and it has never worked on the coach, you probably have a coach wiring issue.
First thing to check, by looking at the diagram, is does the ignition wire have 12V when the key is ON. If so, move on to the main wiring. Starting with the main POS wire, trace it all the way to the batteries. It won’t go directly there, but trace it with an Ohm meter until you get to the batteries. Make a diagram.
Do the same thing with the NEG side too. Half of DC problems are on the ground side.
Look at this diagram. https://f01.justanswer.com/idrdb/c84b5ca...0-4900.pdf
With the internal regulator, you still have to have a power line that turns on when the ignition is ON. Since the alternator worked on the bench with correct wiring, and it has never worked on the coach, you probably have a coach wiring issue.
First thing to check, by looking at the diagram, is does the ignition wire have 12V when the key is ON. If so, move on to the main wiring. Starting with the main POS wire, trace it all the way to the batteries. It won’t go directly there, but trace it with an Ohm meter until you get to the batteries. Make a diagram.
Do the same thing with the NEG side too. Half of DC problems are on the ground side.
Richard and Rhonda Entrekin
99 Newell, 512
Maverick Hybrid Toad
Inverness, FL (when we're home
)