I have an ep 500 regular not pro installed in my van. im getting a high voltage to pv alarm. I’m using 3 24 volt 200 watt solar panels hooked up in series. This gives me 72 volts to charge it. even at open circut voltage which is 43.5 for a total of 130.5 volts it shouldnt be over the max which is 145v. So, my question is why am I getting The fault?
Hi @daltonivy, This does seem a bit unusual. Could you please let us know the exact model of your solar panel? It would also be helpful if you could use a multimeter to test the actual output voltage of the panel to see if there’s anything abnormal.
Additionally, please send us some photos showing how you’ve connected the solar panel and the error message display. Can your EP500 charge normally via car charging?
With this information, we’ll be able to conduct a more thorough investigation.