Keeping your dryer entirely lint free is easy, improves energy efficiency and safety from lint fires.
Inspect & Clean
Annually you should inspect the vent pipe from your dryer to the outside of your house (where the flap door is what opens when the dryer is on and venting). It should be cleaned of lint and dust and properly attached with no holes or cracks. If it is damaged, it must be replaced or repaired properly.
Clean the floor under, behind and around your dryer to remove lint and dirt that naturally collects. You will need to safely move your dryer to do this properly.
Level Your Dryer
Make sure your dryer's feet are level on the ground as this balances the dryer properly and will extend the life of your dryer.
Make sure the flap on the outside of your house opens and closes properly to prevent the loss of energy from your home. Pests can enter through flaps that don't close properly and your dryer will run longer, wasting energy and life if the flap does not open properly.
If you have a gas dryer, the burner should be cleaned and inspected according to manufacturer's instructions.
If Your Unit is not Working
If you have a problem with your clothes washer not working, as with all systems or appliances, check for blown fuses, tripped circuit breakers and proper power first.