When clothes start taking too long to dry, there usually is a build up of lint and debris in the exhaust vent. The first thing is to pull the dryer out so you have room to move and work. Then pull the vent duct off the dryer and check for debris and massive amounts of lint that may have accumulated inside the opening. In addition, check the outside vent to make sure it is not clogged. Most dryers only collect about 30-40% with the lint screen and the rest is expelled through the vent.
Another thing to check if clothes are taking too long to dry is the placement of your dryer. Make sure your dryer has not been pushed back up against the wall. This can pinch the hose and cause a restriction in air flow from the back exhaust panel. To test, start the dryer and let run for a few minutes then open it and feel if there is heat inside the drum. If there is no heat then you may have a thermal fuse or heat element issue. If there is heat inside the drum, your problem is not the dryer but the venting and you will need to find the restriction.
Cleaning the venting is pretty straight forward. You will need a vacuum and a cleaning brush with about a 4 inch bristle. You can find these items at box stores in their dryer sections. Clean the tubing all the way to the outside vent. At the outside vent clean the debris and lint build up. To test you should turn dryer on and go back out and see if the vent louvers are opening. If yes then you are good if not you still have an obstruction and more work to do. KC Appliances and Repair can help you with this project and get your dryer maintenance in order. Call us at 877.983.4933x1 816.286.4445 we are here to help.
Quick tips on dryers check out: not heating, drum will not tumble, taking too long to dry or how to get a dryer repaired.