Signs Your Water Heater Is Failing

Most water heaters don’t stop working without warning. They give off subtle signs first. If you know what to look for, you can avoid cold showers, water damage, and a rushed replacement.

Here are the most common signs that your water heater may be on its way out.

1. Inconsistent or Lukewarm Water

If your hot water doesn't stay hot or takes too long to heat up, there may be an issue with the heating element or sediment buildup. This is often one of the earliest warning signs.

2. Strange Noises

Popping, banging, or rumbling sounds usually mean sediment has built up inside the tank. When water gets trapped under the hardened layer, it creates pressure that leads to internal damage over time.

3. Rusty or Discolored Water

If the hot water coming from your faucets is tinted brown or orange, the inside of your tank may be rusting. This is especially true if cold water runs clear. Rust often means the tank is breaking down from the inside.

4. Leaking or Pooling Water

Any signs of water around the base of the unit could mean a faulty valve, loose fitting, or a crack in the tank. A small leak often turns into a full failure if left unchecked.

5. Your Unit Is Over 10 Years Old

Most standard water heaters last 8 to 12 years. If yours is older than that, even if it's still working, it's more likely to leak or fail suddenly. It's usually better to plan ahead than wait for a surprise.

6. Bad Smell in Hot Water

If your hot water smells like sulfur or rotten eggs, bacteria may be growing inside the tank. This can sometimes be fixed, but in older units it often means it’s time to replace.

What to Do if You Notice These Signs

Don't ignore early warning signs. Most water heater issues don’t go away on their own. At Water Heater Boys, we’ll inspect your unit, explain what’s going on, and help you decide whether repair or replacement is the smarter move.

We don’t charge service call fees, and we’re available 7 days a week. If your water heater needs attention, we’re ready to help.