Yes progressive dynamics from Marshall mi. Getting older and my memory is slipping ??.The voltage at the fan connector was 14.2 if I remember correctly, I will recheck when I get home. I read online some said maxx air told them anything over 13.6 would fry the circuit board. I emailed maxx air today and am awaiting a response.
Just thought maybe it was the higher voltage since the fan worked with a regular lead battery when it was installed in a few weeks ago. I will connect it directly to that FLA battery to see it it works with that. I tried it with just the BB lifepo4 battery and then just the converter and neither worked. If no one runs a voltage regulator with the high volt output lifepo4 charger/converter and a maxxfan then it must be something else going on. Also, the lights all work fine, even the one on the circuit that feeds the fan.