3 signs your water heater is about to tank

Jan 23, 2017
kanderse's picture

3 signs your water heater is about to tank

by Kim

When some appliances break down, they can do more than cause an inconvenience in your life.

They can also cause catastrophic damage to your home.

Your water heater is one of those major-damage causers. Think about it: If your water heater’s tank starts to leak, it can ruin your flooring and any furniture in the water’s path.

Read on to learn if it’s time to replace your water heater.

It’s an (un)perfect 10

The average water heater lasts about 10 years. To figure out how old yours is, check the serial number on the manufacturer’s sticker on the upper part of your tank.

The serial number has the date the heater was made. But it’s not a normal-looking date. Instead, look for the date code, something like H071263749.

“H” represents the month, and since “H” is the eighth letter in the alphabet, it coincides with the eighth month of the year — August. The first two numerals are 07, which means the water heater was manufactured in August 2007.

If your code looks a little different, check the manufacturer’s website to help you decipher it.

What’s that noise?

As your water heater gets older, sediment builds up in the bottom of the tank. This can be compounded if you have hard water in your area.

All that heating of the water will eventually make the sediment harden. As it hardens, it makes your tank rumble or bang as it heats up the water.

All that noise is a bad sign that your heater’s probably on its last legs.

Red, red water

If you go to run a hot shower and notice the water’s got a rusty look to it, that might mean your tank’s rusting from the inside.

And that means it could soon start to leak.

Service Guard to the rescue

Service Guard offers repair plans to cover your water heater, so you get peace of mind if your tank stops heating your water. 

Plus, after you’ve had Service Guard for a year, you can add replacement coverage to your plan so you don’t have to deal with the unexpected hassle — and cost — of replacing your water heater if it dies.

Find the plan that’s right for you.

Showing 5 Comments (oldest to newest)

February 09, 2017
Robin Fritz:
Since I have an almost 2 year old gas hot water heater I now know to be vigilant in the next 8 years or so!
February 09, 2017
Kim@Service Guard:
Robin, thanks for reading our blog and we are glad that you find the information valuable.
February 23, 2017
Art Trouville:
Good article, good information. Are there any other indications that can give some indications that a water heater is on its last leg, other than the ones referenced in the article? For example, our water heater is 20 years old. We do not have any indications that it is about to fail and we don't need to trash it and buy another one just because of the age of it, but no indications. Thanks you.
July 12, 2017
Derek Dewitt:
My wife and I have been having similar issues with our water heater like the rumbling video posted here. I had no idea that it was recommended to replace your water heater about every 10 years, so we'll have to check how old it is. I'm glad you mentioned how to look up the manufacturing date because we probably would have never figured that out either. Thanks for the help! http://www.alderbrookplumbing.com.au/hot-water-replacement
August 16, 2017
Taylor Bishop:
Thanks for going over some indicators that a water heater needs to be replaced. I actually didn't know that the average water heater only lasts about 10 years. That being said, I'm grateful you explained how someone can learn how old the heater is. Definitely is good information to know, especially if you didn't buy it originally. I wonder if this is the case for most water heaters, or if it's possible that some can outlast longer than the average. http://www.firstclassplumbinginc.com/hot-water-heaters.html

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