You may notice your LG dryer not drying as well as it used to. What’s causing the problem, and is there something wrong with the unit itself? The answer may surprise you, and could even save your home from a potential dryer fire. 1. Lint screen needs cleaning. 2. Exterior exhaust vent hood is clogged. 3. Lint buildup inside rear dryer vent. 4. Faulty dryer element for electric models or gas igniter for gas models.