Our dryer is over 15 years old. Over time, the heat level has dropped, but it continued to work with enough time and airflow. Finally, the heat stopped. I tried the lowest cost repair option - a new heater element and a couple of other parts since I was going to have it opened up. Bottom line is that it worked. Access was easy from the front of the machine. Once I opened it up, I was amazed at the amount of lint in there. I should have opened it up years ago and vacuumed it out. Once clean, parts popped in and out easily. Just need a 1/4" ratchet set, #1 and #2 screwdrivers, and plyers came in handy to pull the wires off the terminals.