Gas Dryer does not dry clothes. The dryer on highest setting will dry for over an hour and items such as towels,jeans nad the like are not dry

From what you're describing, there could be a problem with the moisture sensor circuit. On the front of the lint screen holder(you have to stick your head in the dryer and look back, you will see 2 metal strips. These are the sensor bars. When wet clothes brush against them, it lets the computer know that the clothes still have moisture in them and about how much. As the moisture decreases, the electrical signal changes and the computer counts down. The time is JUST AN APPROXIMATION. However, if the sensor bars become shorted, or if there is a problem with the wiring of the sensor circuit, or if the main control board is defective, these will produce the problems you're having. One important thing to note: Samsung dryers, when using the sensor-dry settings, like to have large loads in order to work properly. And, try to have like items with like items(jeans with jeans, shirts with shirts, towels with towels, etc) If you have *small, mixed loads*, use the timed-dry settings for best results.
Also, check inside the lint screen holder with a flashlight(with the lint screen removed) for a large build-up of lint. If there is a significant amount of lint, you could have a partial blockage in the dryer vent tube or wall causing restricted airflow--this will cause longer drying times because the hot air, containing moisture, can't exit the dryer properly. THE RULE OF THUMB ON ALL DRYER VENT TUBES IS: **KEEP AS SHORT AS POSSIBLE, NO SHARP BENDS OR KINKS, STRETCHED OUT(if using the cheaper foil or plastic accordion type)**** Remember, gentle bend coming out the dryer, gentle bend going into the wall. The airflow coming out of the vent(outside the house) had better be close to what's coming out of the rear of the dryer, otherwise there is some type of restriction in the air path that must be removed.

i think your temperature sensor is defective in the dryer section..
check it out

disconnect the vent, dry clothes. as it sounds like the vent tube is restricted

Make sure the lint filter is free of dirt. If this is a gas dryer, listen for the burner switch on. If you hear it switch on and switches off in less than a minute, you will need a new gas valve solenoid. This part goes part and goes on safety - switch off gas. In return you only get a air dry (not heated).

this could be operator error please hear me out...... when wash bath towels you also put in wash cloths and hand towels .... there is a sensor in dryer drum shroud in front of lint filter to metal silver strips when the clothes are tumbling they sweep across this sensor telling the dryer heat to stay on and continue to dry.... if th small wash cloth sweeps it first before the bath towel then u get the same results as your describing just like if you were waqshing colors load like cotton tshirt and blue jeans the tshirt is going to dry way faster than blue jeans so if the tshirt sweeps that sensor first the dryer going to shut off we have to sort our clothes to thickness ans same size articles just try it once i bet your clothes are dry when cycle completes

Hi,

Here is a tip that I wrote about dryers and noises...

It will help you determine what is happening there...

Dryer Repair Squeaks, Grinding, Clicking and Knocking Noise


heatman101

Asker

http://www.partselect.com/dryer+wont-dry-clothes+repair.htm

Your house vent is restricted causing the long time to dry complaint.
Please clean the entire vent to the outside.
Also make sure the vent behind the dryer does not get smashed when the dryer is pushed back to the wall.

ck air flow out vent at back try drying load with vent hose disconnected ..if drys ok ck vent from inside to outside for restrictions