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Pressuretrol keeps cutting off boiler
Boiler keeps turning off. I go to the basement and touch, just barely touch, the screw on the differential wheel of the pressuretrol and it clicks and boiler turns back on. Picture of pressuretrol below.
The boiler has been working fine except for rooms upstairs being too hot and some hissing/spitting from air vents. So I thought I would try turning the pressure down from 1psi to .5psi. Did that yesterday and ever since this problem has been happening. Seems to turn off every hour or two. I put the pressure back to 1psi and it is still happening.
Is this common? Easily fixable? Or do I need to move into the basement 24/7 until I can get someone to come replace the pressuretrol?