i just bought a 48 short hood and im pretty sure it is a red face but i went up ther to buy it and it would not weld so the guy took a piece of sand paper and scrubed off the place where the brushes ride then after that it welded great for about 2 days then now it does nothing so i took a look at the brushes again and they are bearly sparking. any suggestions on what it sounds like or a place that i could get it fixed or looked at would be appreciated thanks dusty