Water heaters are essential elements in providing hot water for different domestic needs. However, like any household appliance, they can encounter issues over time. One common issue that homeowners often is a water heater leaking from the top. This problem may lead to water pollution, increased utility bills, and potential safety hazards.
A primary reason water heaters leak from the top is a malfunctioning Temperature and Pressure Relief (TPR) valve.
The TPR valve’s design allows the release of superfluity pressure and temperature to prevent the tank from exploding.
If the valve is faulty or has become clogged, it can lead water to leak from the top of the heater.
Check the TPR valve for any signs of corrosion or damage. If it appears faulty, replacing it immediately with a new valve with the same pressure and temperature rating is crucial.
Regularly testing the TPR valve is also recommended to ensure its proper functioning.
Over time, the connections around the water heater´s inlet and outlet pipes and the pipes connected to the TPR valve can become loose or damaged. This loss can result in water leakage from the top of the heater.
Inspect all connections for signs of leaks, corrosion, or loose fittings.
Tighten loose connections using a wrench and replace damaged or corroded pipes.
Applying the plumber´s tape to the threads of the connections can help create a more secure seal.
Corrosion and rust can occur significantly within the water heater tank if the tank is old.
When the tank corrodes, it can develop tiny holes that lead to water leakage.
Regularly inspect and replace the sacrificial anode rod inside the tank.
If corrosion has already occurred, replacing the entire water heater may be necessary.
An animal tank flushing to remove sediment can also help prevent corrosion.
Sometimes, water heater leakage from the top might be due to condensation.
When warm water inside the tank meets a colder surface, such as the top of the heater, it can create condensation that appears as a leak. Learn more about it in our condensing vs. non-condensing tankless water heaters article.
Ensure insulation around the water heater and surrounding area to reduce the chances of condensation.
In addition, consider installing a drip pan under the water heater to catch any condensation and prevent water damage.
The water inlet valve commands the flow of cold water into the tank.
If this valve is defective, it can lead to water leakage from the top of the water heater.
Examine the water inlet valve for any evidence of leaks or damage. If necessary, replace the faulty valve with a new one to ensure proper water flow without leaks.
A water heater leaking from the top can be a concerning issue, but identifying the root cause and taking prompt action can avert future harm and ensure the efficient functioning of the appliance. Our first blog posts can give you an ample vision of the pros and cons and maintenance tips.
Regular maintenance, inspection, and addressing any problems as soon as they arise are vital to extending the lifetime of your water heater and avoiding costly repairs. Call our 24/7 plumbers!
Homeowners can enjoy a reliable and leak-free hot water supply by understanding the common causes and implementing the suggested solutions. You can learn more about the related information in our blog: tankless water heater frozen.