Gen. not charging

[Dave Schindel]

hello everyone. As the title says ,I have a problem. I installed a gen. assembly(original equipment)on my carrier and am having trouble getting it to charge.I do not have the filter for it,but everything else is there.I had the gen. off to see if it would motor,and it does. The cut out looks in good shape but I have by-passed it during testing anyhow. I have battery voltage at the cutoutwith the ign. sw. on. the red discharge light comes on as well, and stays on with the engine running.On the back side of the main switch I have the "P" terminal going to the "F" wire on the gen. What voltage should I have at the P term. with the ign. sw. on? Don't I need power there to get the gen. to charge? As it is, I have no power there at any time.
Any ideas would be greatly appreciated.