Know About Best Buy Electronics Return Policy
Major appliances can be returned within the standard 15 days, but because they may need to be picked up, there is a special procedure for returning them. If you discover that something is wrong with your appliance within 15 days of purchase, please call 1-888-BEST BUY (1-888-795-3460) with your order number and you will receive instructions for returning it.
https://sites.google.com/view/best-buy-electronic-return/home

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JoeVesper commented
It's good to know there's a specific process for returning major appliances. Many people assume it's the same as returning smaller electronics, but logistics can be tricky with bigger items. Having that 15-day window and a direct number makes things easier if something goes wrong.