A O Smith Corporation is an American manufacturer of both residential and commercial water heaters and boilers.
A. O. Smith (aosmith.com) has 125 customer reviews on Five Star Index, with an average rating of 1.2 out of 5.
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Paul N.
Had hot water heater under warranty leaking on the inside. The customer service wanted a picture of where the water coming out. The leak was on the inside and could not see it. They said I have to show water leaking out. Would not honor warranty. Do not buy anything from these scam artists. Without cutting it in half to show inner tank you won't see the actual leak.
LD S.
$1500 Hybrid Water Heater. Less than 2 years old. Compressor failure requires heater replacement and costs me $1200 for labor. Would never buy another AO Smith unit!
Dwane M.
Heats 2 gallon and then cold water.
Isiah T.
After calling technical support for authorization to replace a part. A technician named Sarah was very rude. She rushed me off the phone and didnt let me explain the issue. She told me everything is working normal because my client has hot water. I called back the next day to speak with a different technician and it was like night and day. The new technician explained to me that there is an issue and its a fire hazard. I grateful for the new technician, the other should technician should be fired.
Tim M.
Bought an AO Smith 900 water heater in November 2024. In December 2025 it leaked and had to be replaced (unit covered under warranty but not installation $1200). Now three months later the NEW THREE MONTH OLD water heater is leaking and needs to be replaced! DO NOT BUY THIS PRODUCT! Customer service is just a broken record of they only cover the product not the installation! This company doesn't care about their customers....
Kevin
This customer service is not just bad. I talked with three associate last a few days. Over the last a few days, the receipt requirement for warranty keep chaning just to aviod coverage for labor. At the end, I got the chance to talk with supervisor and finally understand why they has one star review here. There should be negative 5 star option for them. I will not use them and recommd others to do the same. Worst customer service. So bad, just evil
Edward S.
I purchased a.o.smith water softener 400T in January 2025 and it was a waste of good money. Immediately started replacing parts and it has never worked properly since installed. Don't waste your money and buy this useless item. It is being replaced next week with a real water softener.
Sebastian V.
first time having this water heater it broke down with a ECC code many people came to see it, got different answers. Only answer was to get a replacement, which took days. The plumber came replaced the old one. Not even a year later same problem. Ao smith has terrible customer service and there product is ineffective. Will never buy Ao smith again.
