Originally Posted by hankscorpio
I'll have to take a look behind it tonight. I assume its not clogged because there is lint getting picked up on the on board trap as well as blowing out the back of the house through the aluminum vent tube.
There should not be another trap or screen on the back of the dryer. As was suggested, if you are getting a lot of lint, try seeing if you can tie a simple filter like pantyhose somewhere on the end of the line. Hard to do I know if you have a flap thing to keep critters out or if you are shy about buying a can of Leggs because your woman doesn't wear stockings anymore. Ever!
The good news is that you seem to have good airflow out the vent tubing to outside and I doubt you will find a clog. The bad news is that the onboard filter is not catching as much as you like. Not uncommon.
And you seem honest about the fact that you, or someone you love, cleans the filter every time, not every 3-4 times? Six kids? Nice fluffy towels and fleece wear for them? Good for you I guess! But there you go. Lots of lint as the fabric breaks down with each wash and dry cycle. Buy them cheap, thin towels and let them go to school without the fleece stuff. You will build character in them.
You seem to have plenty of airflow dumping lint out into your yard but you still really should check your vent exhausts every year or so and sweep them out for safety. New plastic ring ties will set you back $4US? A completely new exhaust will cost you $20? A lint fire from will cost you?
Try the pantyhose filter thing. Toes inflated with lint might scare off a critter faster than the plastic doors flapping shut and the end of the dry cycle. Don't forget to change your pantyhose though!