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Steam boiler constantly cycling
I have a Burnam steam boiler (4 years old) ever since installation, it constantly cycles.
I noticed that the water was jumping in the sight glass. It starts about 3/4 to 4/5 full, fires up, but then the water level jumps and slowly drops to the point where it triggers the low water cutoff. (This takes maybe a minute.) Once it shuts off, the water level returns and then the boiler fires up again. It continues in this constantly.
What can i do to stop it?