Tankless Water Heater Pressure Relief Valve Leaking

1 either the water pressure inside the tank is too high 2 the water temperature is too high 3 the t p valve hasn t been used in a few years 4 the wrong t p valve was installed or 5 the t p valve itself has failed.

Tankless water heater pressure relief valve leaking.

Your water heater s relief valve can start leaking for one of two reasons. Both circumstances should be taken very seriously. If a pressure relief valve for a boiler is accidentally installed on a water heater it will leak like crazy from the start. There s a problem with the valve such as a faulty seal and the water is unintentionally leaking.

When water is coming out of the pressure relief valve on your water heater it could signal that too much pressure is building up inside the water heater which is what the valve is designed for due to the burner or element not cutting off in which case the water heater needs to be repaired or replaced. Some boilers have a tankless water heater or what is also known as a hot water coil. If venting is not working correctly it may occur condensation inside the water heater which leads to leakage problems. And many homeowners have complained that faulty and unattended temperature pressure relief valves have exploded at times they least expected in most cases.

Why might your water heater s relief valve start leaking. Sometimes this coil will develop a pin in it and this causes pressure to seep into the boiler and leads to leaks in the pressure relief valve. Turn off the water to the coil and check if the pressure stops rising. Lack of adequate venting will cause water leakage and it is a well known culprit for tankless water heaters.

These valves may look identical but they re set to go off at 30 psi. There are numerous possible reasons your water heater s pressure relief valve leaks. Either the valve was triggered to open because of excessive temperature or pressure or the valve itself is faulty. A failure in the temperature pressure relief valve could cause an explosive effect suddenly.

So why does my water heater pressure relief valve leak. In the first case the valve will drain water out of the discharge pipe as explained above. Cold water is then added to the tank in order to lower the temperature and pressure inside. A leakage in your water heater pressure relief valve is a sign of a malfunction in your overflow valve.

This may seem like a leak but it s really just the. Reasons for water discharging from the relief valve.