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A. O. Smith warranty for water filters & dispensers

8/100 Warranty ScoreRanked 27 of 29 brands
The short version

A. O. Smith doesn't cover everything, but keeps filter system parts covered to 1 year. That full coverage is the same as most of the 29 brands we compared, which typically cover nothing in full. You don't need to register to get this coverage.

From A. O. Smith's published warranty, checked October 2026.

What's covered

Full coverage: everything, parts and laborPartial coverage: some parts only, you usually pay labor
Purchase5 yrs10 yrs+Full: NonePartial: to 1 year
  • Partial coverageFilter system partsA fee applies1 year
The fine print, decoded

What it leaves out

  • Leaks
  • Normal wear and tear
  • Water damage
Good to know before you buy
  • Filter cartridges are not covered; they are replaced as normal upkeep.
  • You pay labor and a $9.50 shipping and handling fee for each replacement part.
  • Registering is optional, but once registered you won't need your receipt to make a claim.

How other brands compare for water filters & dispensers

Compare all 29 brands
Where you buy it matters

How long stores give you to return it

Longest return window first, for water filters & dispensers.

  1. CostcoMost itemsNo fixed deadline
  2. Sam's ClubMost itemsNo fixed deadline
  3. BJ's Wholesale ClubMost items365 days
  4. SupplyHouseMost items365 days
  5. Lowe'sMost items90 days
  6. TargetMost items90 days
Show all 15 stores
  1. The Home DepotMost items90 days
  2. WalmartMost items90 days
  3. AJ MadisonMost items30 days from delivery
  4. FergusonMost items30 days
  5. WayfairMost items30 days from delivery
  6. BrandsMart USASoutheast storesMost items30 days from delivery
  7. Nebraska Furniture MartMidwest and Texas storesMost items30 days
  8. P.C. Richard & SonNortheast storesMost items30 days
  9. Best BuyMost items15 days from delivery

From each store's published return policy, using its rule for water filters & dispensers where it has one. Member and holiday extensions aren't counted. Check yours before you buy.

Other things A. O. Smith makes

Everything A. O. Smith makes
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