Why is my pressure relief valve blowing off on my boiler?
Why is my pressure relief valve blowing off on my boiler? If you've noticed that your boiler is suddenly letting out steam, it's most likely coming from the pressure relief valve. Your pressure relief valve is likely discharging steam and/or hot water for one of 2 reasons: The valve itself has gone bad and needs to be replaced. Why does my boiler keep blowing off? If your boiler is leaking from the blow off valve, there are a few reasons why this could be happening. The first and most common reason is that the blow off valve itself is old,...