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Shutting the boiler switch does indeed reset the boiler and it was fire up as intended. My question is what can I do to investigate why this is happening

I have the following condition: When the thermostat or hot water tank calls for heat, the circulator pump would turn on, but the boiler would not fire up. The pilot light is lit. I would have to turn the system off via shut-off switch, and when I turn it on, everything will work as it should...

In the Spring, I added a new heating zone and circulator pump for my basement (zone B) to my hydronic heating system. While I was at it, I relocated the circulator pump for the pre-existing zone (zone A) from the return side of the boiler to the supply side, so that it is located upstream to the...