Samsung dryer not heating on steam settings

[Swfrx]

Model Number: db5451
Brand: Samsung
Age: 1-5 years

My Samsung dryer will not heat on the steam settings(wrinkle away). Works fine on all other dryer settings and actually the steam settings worked a couple of days ago. Blowing good though vent and cleaned sensor inside of tub. Any ideas what I might check before calling a technician?

Thanks

[Swfrx]

Model dv5451..not db

[Doc Ryan]

Your model number is not complete, make sure to read the full model number from the tag on the dryer. When the dryer runs with no heat does the dryer come up with any error codes. Many newer dryers have a cool down phase of the cycle towards the end, so make sure that is not what is happening.