Have 3 zones. Last night 2nd zone circulator not working. Today, per boiler instruction sheet, I shut all 3 zones down plus pilot. Got busy with something else. 4 hours later reset pilot, put all 3 switches on and nothing. Push the manual reset on each. Boiler lites and when I release reset, it shuts off, almost immediately. Same thing with all reset released.
Boiler is a Utica Gas, Model PGB175, input 175000/output 140000 Could not find high pressure or temperature switch (probably didn't come with this model). Likewise with gas pressure switches on the fuel train. again, nothing available. Estimated age of boiler 10-15 yrs. HELPPPPPP!!
Last edited by massman; 01-23-2010 at 06:30 PM.
Reason: misspelled words