Yeah that's the problem , the more you have the more problems you'll have .now i had to learn the pin nailer to get it to, function correctly.What started the problem was the air compressor wasn't plugged in so when the pressure got down to be not enough then it jammed .I've a box full of nailers but each is different ,pin ,crown,staple etc.5 altogether.the pin nailer is my favorite Iput the box togehter with 3/4" pins ,glue,1/4" particle board wood.thanks Ralph!