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When is It Time to Replace AO Smith Water Heater?

by | Sep 17, 2018

Replace AO Smith Water Heater

Water heaters can last a long time, but not forever. Are you looking to replace AO Smith Water heater? There are millions of people who have no idea how old their water heater is or how old it was when they moved in. As long as a water heater continues to provide hot water for your home, why even worry about it? It’s important to know how healthy is your AO Smith Water Heater is and how long do AO Smith Water Heaters last?

Of course, all appliances have to be replaced eventually. The only question is how long your water heater will last before age finally catches up with it. This is especially true when you are dealing with a high-quality brand of water heater that was built to last for decades like AO Smith Hot Water Heaters.

When to Replace AO Smith Water Heater

Many homeowners peer into their utility closets or basements to discover they have an AO Smith water heater that has been running fine for five, ten, even fifteen years without a single complaint. But if you know your water heater has seen more than a few years, you may be wondering how much longer it can last.

With a reliable manufacturer and skilled installation, the answer might surprise you.

Here are a few things to keep in mind when deciding when it’s time to replace your AO Smith Water Heater.

The Lifespan of an AO Smith Water Heater

If you want to predict the predicted lifespan of an appliance, look at the warranty. The warranty is meant to cover however long the manufacturer believes their product will last in top condition.

How Long Do AO Smith Water Heaters Last?

Most AO Smith warranties range between 6 and 12 years, usually closer to ten. This means that the manufacturers fully expect your water heater to last at least a decade, and possibly twice that even after it goes out of warranty.

AO Smith water heaters have a fantastic reputation for lasting two and sometimes close to three decades due to their high-quality design, innovative technology, and dedication to making great water heaters for over 80 years.

Signs Your Water Heater Needs Replacement

When dealing with a high-quality appliance built to last long after the warranty, it’s lifespan depends more on maintenance and circumstance than a defined number of years.

Particularly for homeowners who aren’t sure when their water heater was installed, it’s important to watch for signs of water heater failure rather than replacing your water heater on a predefined schedule.

High Power Bill

Sometimes, when a water heater starts to get old, it will begin using more power than usual to keep the water hot. This can be the result of a broken or burnt-out heating element (and the others working hard to compensate), a leak, or another obstruction of your water heating system.

If your power bill skyrockets, check all your major appliances.

Rust in Water

Water heaters are prone to rust because it is a metal appliance that holds water. AO water heaters are particularly well designed to resist and prevent rust, but it can happen.

If rust colored water comes out when you run the hot tap, your water heater could be on its way out.

Rumbling Sounds

Rumbling sounds from your water heater are a sign that you have not been flushing out the sediment often enough. Tap water is not distilled water so, when heated, sometimes particles separate and fall to the bottom. This forms into sediment that can coat and then harden over the heating elements.

A water heater trying to heat through the deposit may rumble, and if the residue gets bad enough, you’ll need a replacement.


Puddling around your water heater is very dangerous but is going to happen with any water heater that springs a leak. Your water heater is a huge tank and should anything become loose or damaged then leaking can occur.

Luke-Warm Water

And, of course, if your water heater stops producing sufficiently hot water, you will probably need to have it inspected and repaired or replaced.

Replace AO Smith Water Heater

For many people, their AO Smith water heater served them well for decades, and it’s sad to see it go. When your old water heater finally gives up the ghost and must be replaced, the good news is that you don’t have to change brands.

No matter how long ago your old AO Smith was installed, the same company has been producing water heaters for 80 years. Replace Your old AO Smith water heater with a new AO Smith water heater to see another ten, twenty, or possibly even thirty years of service from these incredibly high-quality appliances.

Water Heaters is currently serving Long Island, New York and surrounding areas. If you are in New York and are looking for a new AO Smith water heater or need a replacement for a water heater that served you well, contact Waterheaters.com today!


For AO Smith warranty questions outside of New York, please call 1-800-527-1953.