Diagnosing Your Water Heater Leak
Water leaks can be among the scariest issues for homeowners, and rightfully so given the damage water can cause, along with the associated repair costs. Understanding the cause behind a leak and taking quick action are the best ways to mitigate the situation. Below, we’re sharing the most common reasons for water heater leaks, and what you can do about them!
How Does a Water Heater Work?
There are several types of hot water heaters – tankless, storage tank, heat pump, and solar – which may operate a bit differently but all serve the same purpose of heating water for your home.
In traditional water heaters, a large insulated tank stores and heats water. In the case of tankless heaters, water is heated directly as it passes through the unit.
The water is heated by a coil or burner. In electric water heaters, heat is generated when the coil or burner is electrified. In gas heaters, the burner itself heats the water. A thermostat regulates the temperature, turning the heating element on and off as needed.
In traditional storage tank heaters, a dip tube shuffles cold water from the top of the tank directly to the bottom, ensuring that the incoming cold water doesn’t cool down the hot water at the top of the tank. As the water heats up, it rises to the top, where it is accessible when hot water faucets are turned on throughout the home.
With tankless water heaters, cold water entering the unit is rapidly heated as it passes through, providing a continuous supply of hot water on demand.
Why is My Water Heater Leaking?
There are several reasons your hot water heater could be leaking, including:
Loose Connections
Fittings or valves on the water heater can become loose over time due to vibrations or temperature fluctuations.
Internal Tank Damage
Cracks or holes within the tank can occur due to manufacturing defects, age, or extreme pressure.
Faulty Pressure Relief Valve
This valve is a safety feature which releases excess pressure from the tank. If it’s left open, has experienced corrosion, or was installed improperly, leaks can occur.
Faulty Temperature and Pressure Relief (TPR) Valve
The TPR valve releases both excess temperature and pressure from the tank, and can cause leaks if malfunctions or is stuck open.
Corrosion
Over time, mineral deposits can accumulate inside the tank. This corrosion ultimately weakens the structure of the tank, which can result in leaks. Once heavy corrosion has taken place, it will likely be necessary to replace the water heater tank.
How to Fix a Leaking Water Heater
While many cases of a leaking water heater will warrant a visit by a reputable plumber, there are several things you can check to help diagnose the issue.
1. Turn Off the Power Supply
First, turn off the power supply. For electric water heaters, switch the breaker in your electrical panel. For gas water heaters, shut off the gas supply.
2. Check All Connections
Inspect all fittings and connections for signs of damage, corrosion, or leakage. Pay special attention to the pressure relief at TPR valves, as they are common culprits in a leaking hot water heater. For loose connections, you can gently tighten with a wrench. For any damages or corrodes connections, you’ll want to enlist the help of a professional plumber to ensure it is replaced correctly.
3. Call a Plumber
If you’re unable to find the source of the leak, it’s time to call a plumber who can quickly address the issue.
Bonus Tip: Get Regular Maintenance
We know… this doesn’t help you right now if you’re dealing with a leak! But trust us, regular maintenance of your water heater, which includes flushing the tank to remove sediment, can help prevent corrosion and ensure all other components are functioning properly.
Water Heater Repair and Maintenance in Northern Virginia
Water heater not heating properly or experiencing a leak? Our highly trained experts at Kiddco Plumbing have decades of experience in providing exceptional water heater repair services.For 24/7 service, or for any Northern Virginia emergency plumbing needs, call us at 703-435-4441.
