Re: solar charging problem - troubleshooting help please!
Re your solar system - info is helpful, almost sounds like something may be connected wrong. Check that the connections on the charge controler are proper. If they are ok then you seem to be feeding back into the panels when they are not chagring. Also one more point - some charge controlers have to be connected in the right sequence when installed. You could always try disconnecting all the wires at the controler and reconnecting them in the following order.
1 battery negative
2 battery positive
3 solar negative
4 solar positive
5 if your controler has a load circuit leave the wires off until sorting out the charging problem and then re-connect the load and see if it affects things.
This is the most common sequence and may solve your problen. If not then you will have to get a clamp on amp meter and go from there. Let me know how the reconnecting works out please.
Also the brand and model of controler will help me out.
Luck 2 you
Catalina 27 Aft. galley, dinnet L/O
Update - Sold Norah's Ark Buying A 24'Shark
Saint John NB