Hello, and thanks for your question! My name is Charles and I am happy to assist you today!!
This model has had issues with the main control board. This is also a sign of bad connections and bad or cold solder joints. bad joints can happen from long term repeated vibrations and such that cause the weak joints to crack and fail.
It will not be a cheap fix but would be cheaper than a new dryer.
I hope this helps answer your question, if so please click the green accept button, if not im still here to assist you.