Its the circuit board going bad. You should probably put a separate power regulator on the power supply but apparently power problem has been fixed with current replacement circuit board. I had to replace my circuit board. Current version is revision C, I believe.
See Humble Road Youtube video on Maxxair fan.
__________________
Ken
_____________________________________________
2021 Ford Transit AWD ‘Iron Horse’
Formerly - 2007 Pleasure Way Plateau (06 Sprinter T1N), 1992 VW Eurovan Westfalia Hightop
Long ago - 1969 VW Westfalia & 1973 GMC Motorhome
|