Originally Posted by AirstreamFan
The fans slow down for a period, so would that be indicative of the bulk mode? Interval frequency varies.
It might be. Ours cycles like I described. This happens most often when I restart the converter after being a show off by turning off the converter during the day and letting the solar system recharge the batteries, but it doesn't fully recharge them either due to a lack of sun or we're using more battery power than the panels are producing. When I turn it back on that night, the lights glow brightly and the fans speed up, then they dim/slow for a moment, then back up, etc. The cycle continues for some time, depending on how low the batteries are.