I need two fan blades (squirrel cages) for the lower blower on 2 windchaser air conditioners, cant find parts.

A lot of portable units come out of overseas factories that build a certain amount for production and sales. They rarely supply any parts for after sales service however, as a lot of these machines are co-branded with other manufacturers, you may be able to acquire fans from another manufacturer. The only problem is determining what model number they use. You could try having a look in a retail store and picking one that is exactly the same a s yours but may be a different brand. You need to be definite though. Often the knobs, stickers, filter covers etc are different but when you have a very close look at the main parts such as the body mouldings, air inlet and outlet positions etc. You will soon pick which ones are the same machine, just different Brand..