5 Signs It's Time to Replace a Water Heater

A water heater nearing the end of its 8-12 year lifespan may show wear or inefficiency, which can be checked by the manufacture date in its serial number.

Recognizing when it is time to replace a water heater can save homeowners from unexpected breakdowns and costly water damage. While routine maintenance often extends the life of a water heater, there comes a point when replacement becomes the most viable option. Here are some signs that indicate a water heater may need to be replaced.

Age

One of the most obvious signs that a water heater is nearing the end of its lifespan is its age. Most water heaters have a lifespan of about 8 to 12 years. If a water heater is approaching or has surpassed this age range, it may show signs of wear or inefficiency. Homeowners can check the manufacture date by looking at the serial number on the unit, which often includes the date of manufacture.

Frequent repair bills

Frequent repairs are another indicator that a water heater might need replacing. As water heaters age, components wear out and may require more frequent servicing. If repairs become increasingly common and costly, replacing the entire unit might be more economical in the long run.

Rust and corrosion

Rust and corrosion are significant issues that can signal the need for a new water heater. If rust is present in the water coming from the heater or visible on the tank itself, it can indicate that the interior of the tank is corroding. This corrosion can lead to leaks, which are often irreparable. Checking for rusty water can be as simple as examining the water’s color when a tap is first turned on.

Leaks

Water leaking around the water heater’s base is a clear sign that the tank may have a crack or leak. This leakage can occur due to age, internal corrosion, or increased pressure inside the tank. Any signs of water pooling around the heater should be addressed immediately to avoid potential flooding or water damage.

Loss of efficiency

A significant decrease in water heating efficiency can indicate that a water heater is failing. If it takes longer than usual for water to heat up or if the hot water supply runs out faster than it used to, the heating element may be malfunctioning, or sediment buildup could be affecting the unit’s efficiency. Both issues can strain the water heater, leading to higher energy bills and reduced life.

Changes in the water

Changes in water quality can also suggest problems with a water heater. If the hot water starts to appear cloudy, has a metallic taste, or carries a foul odor, this could be due to mineral deposits or bacterial growth inside the tank. These issues can affect the safety and comfort of the home’s hot water supply.

Banging or rumbling sounds

Noise is another red flag. Over time, sediment builds up on the tank’s bottom, especially in areas with hard water. This sediment layer is heated and reheated, leading to banging or rumbling sounds from the tank. These sounds are caused by the sediment reacting to the heating elements or gas burner, which can cause excessive wear on the tank.

Inconsistencies

Finally, fluctuations in water temperature, such as sudden shifts from hot to cold during use, can indicate a failing water heater. This inconsistency can be caused by mineral buildup around the water heater’s elements or a malfunctioning thermostat.

Homeowners noticing these signs should consult a professional plumber to determine whether repairs can solve the problem or if a full replacement is necessary. Replacing an old water heater before it fails completely can prevent the inconvenience of no hot water and potential damage to the home.


If you need an honest, dependable plumber in the Phoenix, Mesa, Tempe or Chandler area, call Jimmy at 480-757-1273.