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I think, I hope I solved my Burnham boiler short cycling problem

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eclecticmn
eclecticmn Member Posts: 121
in Gas Heating
My boiler was short cycling. starts, would reach the 180 deg F limit, shut off, drop to 160 ish, restart. Some heat but not enough.

I just replaced the circulator pump. I suspect the pump was bad or the check valve was bad. There was no pumped flow. I had a gravity system. But a bad check valve would have blocked that, correct?

I wonder why the local HVAC people did not suspect a bad pump?
Here is the first topic.
https://forum.heatinghelp.com/discussion/191012/burnham-series-3-cycling-for-2-min-out-of-5-when-heat-is-called-for-insulation-layer-broken#latest
Home owner near Minneapolis with cast iron radiators, one non working slant fin now ripped out, and hot water heat.

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  • eclecticmn
    eclecticmn Member Posts: 121
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    Also, the TT VAC issue was because when the wood stove satisfied the thermostat, there was no call for heat. When I raised the set point, then the system called for heat forever which it could not meet.
    Home owner near Minneapolis with cast iron radiators, one non working slant fin now ripped out, and hot water heat.

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