If its the wet heavy stuff, mine isn't great with it either. I push all into a pile and then start at it from pile. Works much better under huge load.. You have checked your three sheer pins? Is the fan below chute loaded with snow also? Is the motor govenor doing its job? I use cooking spray on my 47 and with more paint off the interior chute, the more cooking spray I may need to use. Again, all with the wet heavy 38 temp. slush. Mine works better with chute pointed to the right(less clogg). Sure sounds like a shear pin for the fan but you would know best. ???????????