I had the same problem last year. It shows it on and says a time on how long it will take and it never comes on. I have a new filter in and tried to restart, checked wiring, nothing is working. Last year it just started working again one day.
I am sorry for the late reply. I wanted to reach out and ensure your heat is working properly, and you are good to go. Please let me know if you are having any trouble still, as I would be happy to assist.