I have operated a Multiplus I and some SmartSolar MPPT's for a couple of years now, usually powering a 200 W load 24/7 from solar and batteries. Now I am using them harder, and they power a 900 W load occasionally throughout the day.
About two weeks ago I started smelling ozone from the equipment. (I was runninng this higher load before this time and never noticed the smell of ozone.)
I don't know which box the ozone is coming from. Ozone is usually associated with high voltage and arcing. I don't know which box makes high voltage.
Please, what could be causing this? Dangerous? What to do?