My LP Millennium just started to vent steam from the pressure relief valve. I have an add-on gauge and the steam vents at approximately 1.3BAR. The green light turns off as steam continues to vent to about 1.0BAR and the boiler/green light reactivates - cycling pretty much in quick order (this seems to indicate that the pstat is properly functioning).
In the past, I could hear the valve shut (pop) at around .4 or .5 BAR and the boiler shutting off at between 1.0-1.2BAR.
Is this a safety valve failure or the pStat (original)?
Finally, is there a ball bearing involved in the safety valve and spring assembly?
Thanks in advance for your feedback.