Cant get the clean filter lights to stop flashing

Think of this as a "low airflow" indicator. I know it says clean filter, but this error code is triggered when the temperature gets too high in the air duct sensor at the front of the machine as compared to the sensor at the rear of the machine. the most likely cause is a dirty filter. if you use dryer sheets, the fine mesh can get clogged with paraffin wax. if you hold your filter up to the light, and it looks cloudy and clogged, clean it in hot water to dissolve the paraffin.
if the light still comes on, check to make sure your ducting is not clogged and that the flapper door on the outside of your house where the duct exits is clear and that it opens when the dryer is running. you may need to unplug the dryer if the clean filter light is on and wont go off. plug it back in and try to run it.