3 Common Water Heater Repairs and How to Spot Them

7018914308 • June 10, 2025

The water heater is an essential component of modern living, providing hot water for showers, laundry, and cleaning. However, like any appliance, it can develop issues over time. Spotting potential problems early can save homeowners from unexpected cold showers and costly repairs. Here, we'll discuss common water heater repairs and how you can identify them before they become major issues.


1. Sediment Buildup in the Tank

One of the most frequent problems that requires water heater repairs is sediment buildup in the tank. This is particularly common in areas with hard water. As water is heated, minerals present can settle at the bottom of the tank, leading to inefficient heating and unfamiliar noises. Checking the water heater for unusual sounds or reduced heating efficiency can be a clear indicator that sediment may be accumulating. Regular flushing of the tank can help mitigate this issue, maintaining your water heater's performance.


2. Leaks and Moisture Around the Unit

Another common issue is a leaking water heater, which can result from several causes, such as a faulty temperature and pressure relief valve, a corroded anode rod, or a tank that's reached its lifespan. Identifying leaks early is crucial, as they can lead to significant water damage in your home. Performing routine inspections around the base of your water heater and checking for any moisture or puddles can help you detect leaks before they cause extensive damage. Given that there are approximately 113,347 plumbing businesses in the U.S. as of 2023, according to ConsumerAffairs, finding professional help should be fairly straightforward if a leak is detected.


3. Thermostat Function and Temperature Issues

Thermostat issues are also a common culprit behind troubles that do not require water heater repairs. A malfunctioning thermostat can lead to water that is too hot or not hot enough. Keep an eye on the consistency of your water temperature. If you notice fluctuations, it is wise to check the thermostat settings. Adjusting or replacing a faulty thermostat can often resolve these issues, ensuring your water heater operates optimally.


Staying attentive to your water heater's performance can help you spot and address potential issues early. Regular maintenance, such as flushing the tank and inspecting for leaks or malfunctions, can extend the appliance's lifespan dramatically. When in doubt, do not hesitate to consult with a professional plumber to ensure your water heater operates safely and efficiently. Remember, early detection is key to preventing small issues from becoming costly repairs. Contact Nece's Plumbing & Heating for all your water heater needs.

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