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A properly functioning water heater is essential for daily comfort, from hot showers to clean dishes. However, many homeowners don’t think about replacing their unit until it completely breaks down. Waiting too long can lead to costly repairs, water damage, and inconvenience. Recognizing the warning signs of a failing water heater allows you to take action before it’s too late.

How Old Is Your Water Heater?

One of the biggest indicators that it’s time for a replacement is the age of your unit. Most traditional tank water heaters last between 8 to 12 years, while tankless models can last up to 20 years with proper maintenance. If your unit is approaching or exceeding its expected lifespan, it’s time to consider an upgrade before it breaks down unexpectedly.

How to Check the Age of Your Water Heater

  • Look for the manufacturer’s sticker on the unit, which includes the installation date.
  • If you can’t find the date, check the serial number—many manufacturers use a coded system where the first two digits represent the year of production.
  • If your water heater is more than a decade old, start planning for a replacement to avoid sudden failure.

Inconsistent Water Temperature

If your water heater struggles to provide consistent hot water, it may be a sign that the unit is failing. You might notice water that turns cold too quickly, fluctuating temperatures, or lukewarm water even when the setting is on high.

What Causes Temperature Issues?

  • Sediment buildup in the tank can reduce efficiency, making it harder for the unit to heat water properly.
  • A failing heating element in electric water heaters can cause uneven heating.
  • Gas water heaters may have a malfunctioning burner or pilot light issues.

If flushing the tank or replacing minor components doesn’t solve the problem, it may be time to install a new unit.

Rusty or Discolored Water

Discolored water coming from your hot water taps can indicate corrosion inside your water heater. While minor rust buildup in pipes may cause occasional discoloration, persistent rusty water when using hot water suggests that the interior of the tank is deteriorating.

Signs Your Tank Is Corroding

  • Brown or reddish water from hot water faucets.
  • Metallic taste in the water.
  • Visible rust on the outside of the tank or around the water inlet and outlet connections.

Once rust takes hold inside the tank, leaks and system failure are inevitable. Replacing the water heater before it begins leaking can prevent significant water damage.

Strange Noises Coming from the Tank

Water heaters should operate quietly, but if you start hearing loud rumbling, popping, or banging sounds, it’s a sign that sediment has built up inside the tank. Over time, minerals from hard water settle at the bottom, forming a layer that hardens with repeated heating.

Why Sediment Buildup Is a Problem

  • It forces the water heater to work harder, reducing efficiency.
  • The excess heat from sediment buildup can damage the tank, leading to cracks or leaks.
  • It increases energy costs by making the unit use more power to heat water.

While flushing the tank can help in some cases, if the noise persists, it may be a sign that the heater is nearing the end of its life.

Leaks or Water Pooling Around the Unit

A leaking water heater is a clear sign that replacement is needed. Even a small leak can quickly lead to major water damage, mold growth, and increased utility bills.

Common Causes of Water Heater Leaks

  • Internal tank corrosion leading to cracks.
  • Loose or deteriorating connections at the inlet and outlet pipes.
  • Excessive pressure buildup inside the tank, causing relief valve leaks.

If you notice water pooling around your water heater, it’s essential to act fast. In most cases, a leaking tank cannot be repaired, and a full replacement is the safest solution.

Replacing Your Water Heater Before It Fails Saves Money

Upgrading your water heater before it fails completely can save you from unexpected cold showers, high repair costs, and potential water damage. Newer models are also more energy-efficient, helping you lower utility bills while providing reliable hot water.

If you’ve noticed any of these warning signs, don’t wait until your water heater stops working. Contact Lincoln Plumbing & Rooter at (909) 780-0887 to discuss your options and schedule a professional water heater replacement today.

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