Saw this over on the YaHoo group. Fellow there looking for the same thing. Heck, maybe it's you... Anyhow, posted help is as follows:
I just purchased the same model from Walmart about 3 weeks ago. CFM Home Products that make the smoker are out of business.
The good news is a company called Landmann-USA, Inc. in Cartersville, Ga. owns the company now. Phone # 1877 347-4557.
Here a link to there website but there is no mention of the CFM. https://www.landmannusa.biz/store/
I called customer service and order parts already. I also think that the extra racks are around $20.00 a piece.