Are you wondering, “Why does my dryer take so long to dry clothes?” You could have a dryer malfunction, but following a few simple tips can usually solve the problem and improve drying speed. We’ll discuss some common reasons why your dryer takes forever to dry. 1. Incoming power issues. 2. Exceeding dryer capacity. 3. Washer leaves clothes wet. 4. Dirty dryer lint screen. 5. Clogged dryer exhaust vents. 6. Faulty dryer component.