April 19, 2023

Water Heater: Why is my water heater's pressure relief valve dripping water?

Replace the pressure relief valve if it leaks but the water heater isn't overheating.

If the water is overheating, the dripping could be because the overheating tripped the valve. Shut off the circuit breakers and check the thermostats and heating elements. A failed thermostat can cause the element to heat constantly, resulting in overheating. A heating element shorted to the metal tank or cabinet will also heat constantly and cause overheating. Watch this video to find out how to troubleshoot an overheating electric water heater. Replace any failed thermostats and shorted heating elements.

Replace the thermostat in a gas water heater if it's causing overheating.

water heater

THESE REPAIRS MAY HELP SOLVE YOUR WATER HEATER PROBLEM

JC-WH-Replace-the-temperature-pressure-relief-valve

Replace the water heater temperature-pressure relief valve

The temperature-pressure (T&P) relief valve is a safety device that automatically opens to discharge hot water in the event of excessive temperature and/or pressure inside the tank. Replace the T&P valve if it leaks or malfunctions.

Water heater temperature-pressure relief valve

Find the required part specific to your product.

RG-WH-Replace-Water-Heater-TP-Relief-Valve-Intro-Image
July 01, 2015

How to replace a water heater temperature and pressure (T&P) relief valve

If a water heater's temperature and pressure relief valve opens and releases hot water even though the water heater isn't overheating, the relief valve could be damaged. This repair guide and video shows you step by step how to replace the T&P relief valve.

Repair difficulty
Time required
 15 minutes or less
JC-WH-Replace-the-heating-element

Replace the water heater heating element

The heating element is the heat source inside an electric water heater. It extends directly into the tank, where it radiates heat energy to the water around it. If the heating element is not heating when activated, replace the heating element.

Water heater heating element

Find the required part specific to your product.

RG-WH-Replace-Electric-Water-Heater-Heating-Element-Intro-Image
November 20, 2022

How to replace a water heater element

If your electric water heater runs out of hot water quickly, or if the water isn't as hot as it should be, the heating element could be the problem. This step-by-step repair guide and video show how to replace a water heater heating element.

Repair difficulty
Time required
 30 minutes or less
JC-WH-Replace-the-thermostat

Replace the water heater thermostat

The thermostat constantly monitors water temperature in the tank. When the water temperature drops beneath the desired setting, the thermostat sends power to the electric heating element or gas burner to begin heating. If the thermostat isn't sending power to the heating element, replace the thermostat. In a gas water heater, replace the gas control assembly that contains the thermostat.

Water heater thermostat

Find the required part specific to your product.

RG-WH-Replace-Electric-Water-Heater-Thermostat-Intro-Image
July 01, 2015

How to replace an electric water heater thermostat

If your electric water heater makes the water too hot or not hot enough, the thermostat could be broken. This DIY repair guide and video show how to replace an electric water heater thermostat.

Repair difficulty
Time required
 30 minutes or less

Most common symptoms to help you fix your water heaters

Choose a symptom to see related water heater repairs.

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Main causes: faulty pressure relief valve, water is overheating…

Most common repair guides to help fix your water heaters

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Use the advice and tips in these articles and videos to get the most out of your water heater.

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