On Nov 6, 8:29*am, Sue wrote:
Hi all-
Run across a confounding problem with my steam heating system.
It is a one pipe system, Burnham gas boiler, has 6 radiators on two
floors.

The issue I am having is that the Pressuretrol is set to 2PSI for the
main tank, yet the internal syphon gauge regularly goes up to 8PSI.
Around the time the internal gauge hits 8PSI, the furnace clicks off.
The radiators are pretty darn hot when the cycle runs.

This has been going on for a few weeks and is, I think, the core
problem.

However, just yesterday, the system turned on, went up to 8PSI,
clicked off, but no heat came through the radiators.

Any ideas on the cause of each problem? *I would guess they are
related, but am stumped as to the cause.

Many thanks,
Ryan

Do you have any boiler experiance cause I think you need a pro, maybe
the wrong question but is there any water in the boiler, and how do
you know. Try draining and see if the sight glass lowers then refill
it but try to measure what you remove and put in. My sight glass had a
clogged feed and jumped around and I had the wrong level till I hired
a pro to retap a rusted closed pipe that broke off in the boiler. Is
the pressuretrol a mercury bulb, they can go bad and not move freely.
Im no pro just guessing.