Sep 15, 2020 · The only time the pressure would get that high is if there is an issue with the gauge itself or your pressure release valve is jammed and the safety measures for the boiler to lockout have malfunctioned. If your boiler pressure becomes too high or too low your boiler will lockout and cease to function as a safety precaution.
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Boiler Pressure Too High? 4 Fixes to Reduce Boiler Pressure
Nov 02, 2019 · The green 1 1.5 bar is the safe spot where you want to be. If you are hitting over 2.5, then you have too much pressure in your boiler. If you are below 1 you have low boiler pressure. While gauges will go higher in most cases, a boiler will shut off or breakdown if the boiler
What to do if your boiler pressure is too high | Viessmann
The numbers or colors on your pressure gauge will allow you to determine, at a glance, that the pressure in your boiler is too high. Overall, the safe spot, or green range, is between 1 and 1.5 bar. This is where you want your boiler pressure to sit and if youre hitting well over 2.5, there is too much pressure in your boiler.
Sometimes, one of the reasons behind high boiler pressure is a faulty valve. A defective valve may cause the water to spill into the heating circuit which, in turn, causes the pressure inside of the system to rise. If the valve is loose, try tightening it and if that doesnt help, then you will need to replace it.
High boiler pressure isnt dangerous, even if its showing as three bar on the pressure gauge. In most cases, the boiler will turn itself off if the pressure goes about a certain level and a working PRV should successfully control the pressure, preventing it from getting too high.