Post by
SteveTheTech »
https://forums.nicoclub.com/stevethetech-u103802.html
Fri Mar 05, 2010 4:53 pm
Welcome to the group Sorry about the delayed response.
In my opinion what it sounds like is a motor for one of your Air Conditioner mode doors slowly dying. There is a small reverse polarity drive motor for 3 different modes. If you scroll through the modes by repeatedly pressing the lower middle (? depending on year) and waiting until the airflow changes. If you notice the noise while the mode is changing that would be a big red flag in my book. There are several other thins but from your description that is the first things that I would check.