picked up a used, i believe its a 2cu/ft hopper, this fall. worked great for the first couple storms. loaded it up this morning. got to the first site and the controller wouldn't turn on. it does nothing. check all the cables to battery and they were goot. test light turned on. checked fuzes on other connector and they were good. took the cover off the controller and the 4 fuzes inside weren't blown out. switched the switches between vibrator and on/off and it turned on for 2 seconds, i believe it threw a A code but not 100% on that and it turned back off. rechecked everything and all still looked good. any ideas on issue? we are currently going to go buy another controller just to be safe. anybody able to rebuild these? also how do you unload these without a working controller?