It turned out that the dryer lint screen was torn and most of the lint was getting sucked into the wall of the dryer, which prevented the heat from reaching the drum. OK, so I'm a novice here as I am trying to describe what was happening, but the end result was that it would take 2 or 3 FULL cycles to dry an average load of clothes! Replacing the screen solved the problem. AND we ordered it on Wednesday and it arrived on Thursday WITHOUT paying for overnight delivery. The website says they are fast...and the are!!