Furnace Pressure Relief Valve Dripping

The relief valve is working the way it s intended and water drained to reduce the pressure inside the tank.

Furnace pressure relief valve dripping.

Leaking of the pressure relief valve due to this condition is normally cyclical as the boiler temperature heats and cools. Both circumstances should be taken very seriously. A typical cause is the cold pressure of the boiler water system is higher than the setpoint of the expansion tank which are typically designed with a 12psi setpoint. It all comes down to knowing how to fix it.

There are a lot of different things that may have caused your water pressure relief valve to begin to leak. If the system pressure is 30 psig and the relief valve rated for 40 psig is leaking the relief valve is most likely defective. Either the valve was triggered to open because of excessive temperature or pressure or the valve itself is faulty. Drain water from the boiler in order to reduce the pressure.

How to fix a leaking boiler pressure relief valve step 1. There are two potential causes for this circumstance. When you notice a leak coming from your boiler pressure relief valve attend to it immediately. These valves may look identical but they re set to go off at 30 psi.

In the first case the valve will drain water out of the discharge pipe as explained above. There s a problem with the valve such as a faulty seal and the water is unintentionally leaking. Another troubleshooting task i perform is watching the tridicator or pta gauge while the boiler is firing and heating the water. Shut down the power to the boiler.

This safety valve should be checked at least every three months. If a pressure relief valve for a boiler is accidentally installed on a water heater it will leak like crazy from the start. In this example the relief valve should be at 40 psig or higher. The relief valve is defective.

You may find that your water pressure relief valve may begin to leak after it has been flushed. Open the drain valve on the boiler to drain the. In most cases this will involve switching off the breaker specifically. Your water heater s relief valve can start leaking for one of two reasons.

It may also begin to leak after time or if it was not installed properly. Eventually everything will give in to wear and tear.