Ok, need some input (help). Last 4-5 cooks grill hasn’t heated up as it should, very slow to get temp. Tons of smoke coming out pellet hopper. Cleaned fire pot out and noticed an excessive build up for amount of grilling I’d done since last clean out. Tonite, same thing so I emptied pellet hopper (pia) and nothings stuck in hopper as it turns, but pellets in fire pit didn’t looked burned properly and it was very full. Auger issues maybe? Advice? Thx