Like the basic theory of the two without using complex terminology
Does is smell like burning rubber, or maybe mildew? You may need to check the rubber belt that drives the brushes on the head. They can smell awful, once they start to degrade. You might also need to adjust the height, to ease the strain on the roller. Bissel has a customer service number, if your problem persists.
When lightening rods were invented, some churches refused to defy the will of God by putting them on their steeples. Guess which buildings were the only ones that got hit by lightning?
