Going by this logic "fan are consumables" then I wonder why Noctua slapped a 6 year warranty on these fans in the first place. Noctua and most other fan manufacturers must be so silly! Since all Noctuas I know of have 6 year warranty, if you have the invoice for this then good. If you don't, at least giving a personal warranty of 1 week to 2 weeks, even up to a month would be a good gesture to your potential buyer. Anyhow, free bump for you.

Yes I know good. I own a bunch of different Noctuas myself, and currently selling off my Redux line. Even the Redux line have 6 years warranty by Noctua. Re-read my earlier comment in full and try to understand my point. Its not right to say fan are consumable to justify not giving a warranty. When the manufacturer themselves give a warranty. Its more accurate to say "sorry I don't have the invoice/receipt so no official warranty", and I did suggest as a good gesture to give a short personal warranty, not just cover DOA. Nobody is questioning the quality of the fan, its the seller that can improve his sale. TQ.

I understand bro, I never said you must give 6 years or even 1 year. I said if got invoice then good, means should be still covered. If no invoice just say no invoice hence no warranty from distributor. And yes a personal warranty of few weeks to 1 month is very much welcomed, you may attract prospective buyer this way.

Fans are not consumables in the same way that printer ink is. If they were, you won't see 1 year warranty on most brand-name fans (ID-Cooling, Deepcool, Cooler Master), 2 year warranty (Thermaltake Toughfan, Scythe Wonder Snail) or 6 year warranty (almost all known Noctua models). They would all sell fans with no warranty and cite your reasoning above.

GL with your sale.