We want you to love your dryer, Doug. Let's go ahead and check why it takes time to dry.
If your dryer has weak heat and runs for a long time, that could also be a blocked vent. Please check these links for details.
Clothes are not dry after using Samsung dryer https://www.samsung.com/us/support/troubleshooting/TSG01000999/
What to do if your Samsung dryer isn't heating or drying | Samsung US
https://www.youtube.com/watch?v=LibK_OLFH4Q
Keep your house safe and your energy costs low with a little routine maintenance. Please check this link for details.
Clean your Samsung dryer
https://www.samsung.com/us/support/answer/ANS00050526/
The Eco Dry setting reduces heat output in order to save energy. In fact, the beginning of the cycle doesn't use any hot air at all. This results in longer cycles with overall less energy expenditure.
Please check this link to your user manual for details. Turn to page 35.
https://downloadcenter.samsung.com/content/UM/202210/20221028082248825/DV5400_UM_DC68-03784D-13_EN_MES.pdf
There are so many cycles and settings available on your dryer, so you're really missing out if you're only using the defaults. Please check this link for details.
Cycles, settings, and features on your Samsung dryer https://www.samsung.com/us/support/answer/ANS00051022/
Should you ever need more assistance, please feel free to get back to us via the following options:
1. Facebook Messenger: http://m.me/samsungsupport
2. Twitter: https://twitter.com/messages/compose?recipient_id=18768513
3. Samsung Community: https://us.community.samsung.com/t5/Samsung-Community/ct-p/us
When you message us, please provide us with this reference number (1145555954) to help our team pull up your information.
Thank you for being a valued customer of Samsung. Have a great day.
^Camille