Dryer stuck amana wont turn off

If it is the timer thats not shutting itself off ,than check the following below
First off turn dryer ON and make sure there are no kinks in vent tube thats attached on back of dryer.2nd,find the outside vent opening and feel for strong air flow.If you have any doubt that its not strong enough then,pull dryer away from wall....pull the vent hose off the dryer ,.....now dry 1 load on a 50-60 minute Timed Dry Cycle.If all goes well, you now know your venting has to be cleaned out.(The only 1out of 1,000 other thing to check is your lint screen ,make sure you can see light through it.) 3rd and final , is if after running for 60 minutes with vent un hooked and still it is not drying competly,than you have to replace the Split coils on the burner,I really can doubt that you have a thermostat out.If you need to know the stats of the Split Coil to Thermostat ratio my experience is 250 Split Coils replaced to just 1 thermostat. Please Rate This !!!!