This is a valve that keeps backdrafts, rodents, and debris from entering your venting system from the outside. If that's clear, check the vent hose that attaches your dryer to the wall.

Spring is the perfect time to tackle those hidden trouble spots around the house, and your dryer vent should be high on the list. While it might not be as obvious as cluttered closets or dusty shelves ...

that’s a clue that there may be a blockage in the dryer vent system. When you’re drying a load, go outside and look at the vent. Do you see or feel exhaust air? If not, the vent or exhaust ...