I have a 2 year old Carrier Heat Pump (still under a factory parts warrenty). The fan has begun acting erractically. The air pulsates, but most of the time I can barely feel it blowing. I would say it is at 5% of the normal pressure. I called the installer and they told me it would take 5 weeks to get the part from their normal supplier. They are looking for other sources but cannot give me a date. It seems unreasonable to have to wait this long for a part on a unit that is 2 years old. The dealer told me that this is common now, that my unit is already obsolete because the new units have different parts and Carrier is not making parts for the older units - even ones 2 years old. It makes me reconsider about using Carrier for a future addition I am planning, or this typical in the industry now?