Could you assist me in determining if I can exchange my fan. I have the Lifetime Warranty paperwork and wanted to know if I was supposed to bring the fan to Home Depot where I purchased it or if it was to late because I didn't have the box for it and it has been put together? I have the fan now for almost 6 months and I am finally ready to do the house repairs. I have been embarrassed to exchange the fan without the receipt and it has been located, but I think it might be to late to do anything. I would just like my fan to work!