I got 4 of such controller and have for each measured 70 V input (2 panels in series) max 10A.
manual said max 100 V . yellow and green leds are blinking, means to high voltage.
1. problem app did not fins any controler, maybe another smart phone works..
2. how on hell could i sort this problem out.....
1. first connect pv and try if controler is working than shut offf.
2. i connect my 48V opsz battery.
any clue?