My Samsung DV337 Dryer also runs for a short amount of time and then stops. I'm getting a code that looks like an upside down F, followed by an o. I can't find this code in any service manual I've looked in. The dryer does have heat, although it seems to be extremely hot. I believe it is shutting down due to the excessive heat. I've checked the vent duct and it's clear.

SOURCE: DRYER RACK DOES NOT DRY CLOTHES

try timed dry cycle instead of the auto-sensing setting. In your drum if you have auto dry such as less dry normal dry and more dry, There is a sensor sometimes in the drum and sometimes in the exhaust right after the blower. If in the drum then your clothes brush by this and if moisture is sensed then it keeps on drying. With your rack the clothes can't touch the sensor so it tells your dial to turn and that items are dry which in fact are not. Try this and see how it does.

SOURCE: DV448AEP sensor drying doesn't seem to work

I had the same problem with mine. My wrinkle free setting some how got turned off. As soon as I turned that back on machine kept running and dried the clothes fine.

SOURCE: Can I run the dryer vent vertical and how high?

yes

SOURCE: 3-way vent, 4-way vent on Samsung electric steam

I couldn't find any information for a 3 way or 4 way vent on your system. You will need to call Samsung for customer support. Here is the link for customer service for Samsung.

http://www.samsung.com/us/support/main/contactcenter.do

SOURCE: Not Heating

there could be a problem with one of the thermal fuses located in the cabinet under the drum and along the side of the heating element can. the first one to check is the one furthest back on the can.
you can check them all for continuity and replace the one that is bad also check the heating element last.