Cat alternator not charging

[Harold Prescott]

Hello Forum members,

First I have to thank the forum for helping out many times.
Ralph Fullenwider and Stephen Britles, for their help with my
headlight Mod.

Now as we are getting ready leave Northern California, I'm having a
problem with the cat alternator picking up the charge when switching
off the shore power.

My question,
Is there a relay that is failing or should I just change out the
alternator on the Cat?

Harold Prescott
'85 FC35
Marysville, Ca.