Water Heater Pressure Relief Valve Test

After the test lower the water heater thermostat temperature to around 120 degrees fahrenheit to avoid scalding and overheating.

Water heater pressure relief valve test.

Watch as one of our master plumbers shows you how to test your water heater s pressure valve and keep your home s hot water system functioning properly. The thermostat and pressure release valve on a water heater was designed to help keep your family safe. If you do it will lock and the water heater will drain. A buildup of mineral salt rust and corrosion can cause a tpr valve to freeze up and become nonoperational.

The temperature and pressure relief valve tpr valve opens to release pressure buildup in the water heater when the temperature or the pressure get dangerously high preventing a possible explosion. More frequent testing can reduce the chance of a leak caused by mineral and corrosion buildup. If water continues to flow out of the valve after the test continue to raise and lower the valve to free any debris that may be putting it out of adjustment. In addition to testing the pressure release valve on your water heater keep your thermostat set at a safe temperature and flush your water heater annually.

You only want to drain a gentle stream from the tank.