Paul, 2 red flashes, may mean battery voltage may be too low to take a charge. there could be connection problem (clean and tighten), defective charger. You can check voltage of each individual battery and if you you find a low one, try trickle charging that battery to bring it back with smaller auto charger with appropriate charge voltage. The local golf could probably verify if the charger is the problem.Good luck.

LInk below will explain charger light/diagnostic codes further.

I hope this helped you out, if so let me know by pressing the helpful button.

http://www.golfcarthotrod.com/298/powerw...