Did I fry my charge controller?
I’m trying to troubleshoot a non-functioning charge controller (Bogart Engineering SC-2030) after it had been working well for many months.
Here’s a system description:
1. Camper Van system with a Small portable panel (80w). There's about 40ft of 12 AWG cabling between the panel and the charge controller. I get about 16.7V at the solar input terminals on the charge controller (after the 40ft of cable).
2. Bogart SC-2030 charge controller paired with the TM-2030 battery monitor (connected together with that special RJ14 phone cable) they use. Wonderful system overall.
The above had worked reliably for almost a year and I tested that it was working correctly this morning. Later this morning, I went to connect a new portable solar panel (160W https://www.solarblvd.com/products/solar-cynergy-160-watt-foldable-12-volt-solar-panel-2/ ) to the above system. Before I connected it, I confirmed that the 160W solar panel was outputting 16.7V (after 50ft of 10AWG cabling) on its outputs before I connected it to the SC-2030. I routed the cables from the panels directly to the SC-2030 charge controller - I bypassed the crappy charge controller that's mounted to the back of the solar panel.
When I connected the 160W panel to the SC-2030, nothing happened. No charging light on the TM-2030 came on and it didn’t show any voltage going into the batteries. There was no smoke released or noises. I tested the input terminals on the SC-2030 (solar side) and the voltage was definitely going into it. Puzzled, I plugged in my old 80W panel and now it didn’t work either. I was stumped. Both panels tested the expected amount of voltage at the input terminals of the SC-2030. I noticed that none of the amber lights on the SC-2030 were illuminating either at this point.
In thinking back, it’s possible that I could’ve connected the new 160W solar panel to the SC-2030 with reverse polarity. It’s the only thing that could’ve been incorrect during my testing process. Is it possible that this would have fried my SC-2030?
After the problem arose, I tried re-programming functions in the SC-2030 via the TM-2030 like the battery profile, battery amp hour capacity, % remaining, and it looked like those settings were being stored successfully.
Do you know what the issue could be? Is my SC-2030 in a protect mode or something? Is there a master reset? Or did I fry my SC-2030 and I need to buy a new one? Thank you!