you could threaten them with a legal action for sending broken machines as "new ones" and then failing to repair them,
I can't as terms from Bitmain say:
1.6 Replacement Product or replacement product means the Product of the same type or specifications provided to replace the defective Product or Product of the same brand with hash rates no less than that of the defective Product.
Replacement Product may not be a new Product. The warranty period of the Replacement Product will be the remaining warranty period of the original Product calculated from the date of dispatch of the original Product, except when the warranty is voided in accordance with the terms and conditions of this Policy.
https://service.bitmain.com/support/termsAs for the state of miners, they are not oily, they are dusty. I can show pictures if anyone is interested.
Regarding the first one T17e that dropped 1 board out of warranty - i think im gonna wait for it to drop more boards. But as i said whats the point in repairing if they are sending same crap back.
I have made 2 proposals to Bitmain so far:
1) We send you DOA units, you replace with new series once available ( we can pay difference in value )
2) We send or keep DOA units, you provide with coupons for new series once available. We expect coupon not to be below 60-70% of what we payed for 3 units, T17e 2x T17+.
This seem fair and logical instead of sending crappy gear back and forward. Also we are risking our company to get fined for up to 10.000 USD because importing scrap equipment is against the law.