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Help for complete amateur
Completely new homeowner with almost no knowledge of home heating systems. My combi boiler is short cycling, with a new ignition cycle starting every minute. I wake up, Adjust the thermostat from 55-63 (its -35 outside if that matters). It seems to run smoothly at 10-20% for about 30 minutes. But eventually it starts to short cycle (prepurge/ignition/flame up to about 70%/postpurge/setpointmet/anticycling) every minute. There are seemingly random periods where it will settle into another smooth 10-20% burn for a few minutes before another period of short cycling. The call for heat isn’t being satisfied - thermostat temp is currently showing 59 when set for 63. I don’t even know where to start. There is a Honeywell 3 speed circulating pump currently on setting 3. Could adjusting it to 2 make a difference? Please help. This boiler has gone through over 450 gallons of propane, nearly $1600 in just over 2 months of us owning the house.