Furnace Pressure Relief Valve Dripping

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.

Furnace pressure relief valve dripping.

This safety valve should be checked at least every three months. Shut down the power to the boiler. These valves may look identical but they re set to go off at 30 psi. In this example the relief valve should be at 40 psig or higher.

Eventually everything will give in to wear and tear. If a pressure relief valve for a boiler is accidentally installed on a water heater it will leak like crazy from the start. It may also begin to leak after time or if it was not installed properly. Open the drain valve on the boiler to drain the.

Another troubleshooting task i perform is watching the tridicator or pta gauge while the boiler is firing and heating the water. In the first case the valve will drain water out of the discharge pipe as explained above. Both circumstances should be taken very seriously. There are a lot of different things that may have caused your water pressure relief valve to begin to leak.

The relief valve is defective. Either the valve was triggered to open because of excessive temperature or pressure or the valve itself is faulty. It all comes down to knowing how to fix it. If the system pressure is 30 psig and the relief valve rated for 40 psig is leaking the relief valve is most likely defective.

Leaking of the pressure relief valve due to this condition is normally cyclical as the boiler temperature heats and cools. Here are possible causes and solutions to fix such a problem. 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.

There are two potential causes for this circumstance. So if you see water actually spilling or even if it s just dripping at the temperature pressure relief valve on your heating boiler or water heater the cause needs to be found and fixed promptly and it may be appropriate to install a new t p valve also called tpr valve after those repairs are complete. Drain water from the boiler in order to reduce the pressure. There s a problem with the valve such as a faulty seal and the water is unintentionally leaking.

How to fix a leaking boiler pressure relief valve step 1. When you notice a leak coming from your boiler pressure relief valve attend to it immediately.