Error 87 and 39 with BlueSolar 250/100

Hi -

Setting up a BlueSolar 250/100. The first test was a single 300w panel and a 12v lifepo4 battery. I did a firmware update on the unit and factory reset everything. Battery is autodetected 12v as expected. Battery is currently at 13.17 volts. When I hook up the solar inputs, I immediately get errors 39 and 87.

Attached are screenshots of my settings - since float voltage is 13.50v, I would expect the charger to start working when enabled. Is there something set incorrectly?

Thanks!