Hi All,
I am writing because I am pretty much out of ideas. I am hoping that someone on this group will have more expertise than I have.
Anyway here is the situation (all that I know). I have a 20 year old Burnham Oil Boiler. It provides hot water for heating and a tankless hot water system for the house. It was serviced in the fall by the oil company.
The heating in the house is in 2 zones, one zone is programmed to change temps during the day to save on heating, and the other is maintained at a temp of 62F.
The furnace seems to shut down erratically. Sometimes at night, sometimes during the day. There does not seem to be any pattern to when the furnace shuts down. Once the boiler shuts down I have to press the reset button to get it re-started, and when I do that it fires up first time with no problem, no loud noise and no puff of smoke.
I called the service people out, and they have so far replaced, filter, electrodes, nozzle, cad cell relay, pretty much everything. The service man also said there is a good amount of current, a good stream of oil and good oil pressure. None of this seems to have made a real difference.
The boiler still shuts down every couple of days in the New England winter, and much less frequently in the summer.
I thought that short cycling was to blame, and therefore changed the Cycles per Hour on the thermostats. This also did not make any difference.
If anyone has any ideas on what to check or try I would really appreciate it, as I am pretty much out. Other than a new boiler :)