Do You Need Water Heater Repairs? 5 Signs to Look For

1 February 2023
A close up of a water faucet with water running out of it.

A reliable water heater is critical for convenience and comfort in your home. The water heating system ensures instant and constant hot water flow when needed. Therefore, you cannot afford to have your water heater fail even for a day.


Part of proper water heater care is to understand indicators of a failing system. This way, you can take proactive measures to either repair or replace your water heater before damage occurs. Discover some signs that your water heater is failing and needs immediate repairs.

1. Noisy Water Heater

Numerous issues can cause your water heater to make odd sounds. For example, a vibrating sound may signify sediment buildup at the bottom of the water tank. The sediment may trap boiling water and create a loud vibration. In the same way, sediment could cover the heating elements at the bottom of the water tank to cause a hissing sound.



A faulty valve is the most likely cause if you hear a whistling noise. For instance, if the valve fails to open fully, water is forced through a small opening, which leads to a whistling sound.


Loose components may also cause humming sounds from your water heater. Whichever the case is, let a plumber inspect the system for diagnosis and repairs.

2. Discolored Water

Rusty or brown water is an obvious indicator that your water heater needs attention. The water discoloration often primarily results from the anode rod corrosion.


The anode rod is installed in the water tank to protect it from rust by attracting corrosive materials. So, when the anode starts to wear out, the element can no longer protect the inner tank from corrosion, thus the water discoloration.


Rusty water is unsightly and can damage your appliances and threaten your health. Therefore, inspect the anode rod, or contact a plumbing technician.

3. Inadequate Hot Water

If you suddenly cannot get enough hot water to run your household, you may have a water heater problem. The most probable cause of hot water shortage is sediment buildup in the tank.


As the sediment accumulates, the buildup causes a decrease in the amount of water that can fit into the tank. And when there is not enough water to heat up, you will find yourself with insufficient hot showers than you need.


Insufficient hot water may also mean that you need to upgrade your water heater to a bigger size. Perhaps your family is growing, so the current unit size is insufficient for the increased demand.

4. Leaky Water Heater

Water heater leaks can cause significant water wastage, which adds to your monthly water bills. Also, leaks can cause costly damages to your property, such as the floor and foundation, if not detected soon enough.


Water leaks may result from loose pipe connections, condensation on the tank, or a faulty valve. Such problems are easy fixes, but if tightening the screws does not solve the issue, you may have a bigger problem that necessitates a professional checkup by a local plumber.

5. Smelly Water

Again, the anode at the bottom of the tank eliminates bacterial growth from the water. However, when the rod starts to rust, you may notice a foul smell and taste emanating from your water heater.


Get a plumbing professional to inspect your anode rod if you notice strange tastes and smells in your faucets. In most cases, the plumber will advise replacing it with a new one to eliminate contaminants that can cause adverse health effects.


Now that you understand some warning signs of a failing water heater, you can take timely action to repair or replace your unit. A reliable plumber will inspect, repair, and maintain your water heater for longevity.


You can trust us at AZ Emergency Plumbing for all your water heater needs. We have the experience and expertise to diagnose and suggest the best solution for your failing water heater. Contact us for a consultation.

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