6 Common Water Heater Issues and How to Address Them

July 9, 2024

Water heaters are essential appliances in our homes, providing hot water for showers, dishwashing, laundry, and more. However, like any other appliance, they can experience issues that disrupt their functionality. Understanding these six common water heater problems can help you troubleshoot and determine when to call the professionals at Garner Plumbing Services. Keep reading to learn more.

A person is fixing a gas water heater with a wrench.

1. No Hot Water

One of the most common and frustrating problems is when the water heater fails to produce hot water. This issue can be due to various reasons, including:



  • Pilot Light Outage: For gas water heaters, the pilot light might have gone out. Relighting it might solve the problem.
  • Faulty Thermostat: The thermostat controls the temperature of the water. A malfunctioning thermostat may need adjustment or replacement.
  • Heating Element FailureElectric water heaters rely on heating elements to warm the water. If these elements are defective, they need to be replaced.

2. Inadequate Hot Water

If your water heater produces hot water but not enough of it, several factors could be at play:


  • Sediment Buildup: Over time, sediment can accumulate at the bottom of the tank, reducing the unit’s efficiency and hot water capacity.
  • Thermostat Settings: The thermostat might be set too low, resulting in less hot water.
  • Tank Size: Your water heater may be too small for your household’s needs. Upgrading to a larger tank might be necessary.

3. Discolored Water

Rusty or discolored water from your water heater can be alarming. Common causes include:



  • Corroded Anode Rod: The anode rod prevents tank corrosion, but over time, it can deteriorate and cause rust in your water. Replacing the anode rod can resolve this issue.
  • Rusty Pipes: Corrosion within your home’s plumbing can also lead to discolored water.

4. Strange Noises

Banging, popping, or rumbling noises from your water heater can indicate a problem:



  • Sediment Buildup: Sediment collects and hardens at the bottom of the tank, causing noise during heating cycles.
  • Mineral Deposits: Hard water can lead to mineral deposits inside the tank, contributing to unusual sounds.

5. Leaks

Water heater leaks are a serious issue that requires immediate attention. Common sources of leaks include:


  • Loose Connections: Check for loose connections at the inlet and outlet pipes.
  • Faulty Temperature and Pressure Relief Valve: This valve may leak due to excessive pressure or temperature in the tank.
  • Cracked Tank: If the tank itself is leaking, it usually means it’s time for a replacement.

6. Pilot Light Issues

For gas water heaters, the pilot light can sometimes go out. This might be due to a faulty thermocouple, draft, or dirt in the gas line. Relighting the pilot light might work temporarily, but persistent issues require a professional inspection.

Address Issues Promptly

If you’re experiencing any of these common water heater issues, addressing them promptly is essential to avoid further complications. For reliable and professional water heater repair and maintenance services in Atlanta, GA, call Garner Plumbing Services at(706) 654-5822 or request service online.

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