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Steam Boiler problems...oh arent they fun!
I've got a gas powered New Yorker steam boiler (brand new), installed earlier this year. The first couple months it ran great, the radiators all heated, and life was good. More recently it's been causing problems- here's the story- i'll be brief:
I call for heat, it fires up and within 15 minutes all the near piping is good and hot. Some of the radiators will begin to get warm. The the sight glass starts to bounce violently. At about 20 minutes it will bounce low enough that the LWCO will kick in and cut the flame. When it cuts out, the water level in the sight glass stabilizes and returns to 3/4 full. The LWCO thinks for a minute, doesnt add any water, and then the boiler kicks back on. It will continue this, kicking on and off every couple of minutes until finally it turns off and stays off.
I had a plumber take a look. He recommended running 8-way cleaner through it, as i never did, and he said it probably has too much oil. I ran the cleaner through for a couple hours, and then flushed it over and over until the water was clear. I've skimmed it countless times. I also removed the LWCO probe and made sure it was clean. None of this has helped at all.
Plumber stated he thought some of the near piping wasnt done correctly, and this "could" be the cause. But he wants $500 to change it, and im not totally confident that he's going to be any better than the first plumber who installed it. I live in detroit and steam pros are no where to be found.
Could the near piping cause the water level to bounce so much? What else could it be? I've read some forums here that discuss the PH level of the water...it's definitely had a lot of new water added over the past week and it isnt filtered. But would that cause it to turn on and off?
Also, i have the pressure set at 2, but i have the original 0-30 psi pressure gauge on there and it never moves. I havent checked the pig tail but its only been in operation for 4 months. Other ideas?