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DEAD Peerless 85-140 Ser# 85-9364-0589 (140K btu)
Boiler runs normal for 3-6 hrs. then dies ...Pump continues running after burner goes cold and zone valves stay open where t-stats are calling for heat.H/W module indicates code 1 (ignition lockout).This unit has hot surface ignition and whenever I stay and watch it re-lite it works perfectly every time. We have tried many things..Cleaned flame sensor, replaced one end switch repaired cross wired zone valve, removed and cleaned burner assembly, checked gas pressure and adjusted gas valve pressure.Is ther a generic wiring schematic out there of a basic 3 valve system so I could ck. the valve/ thermostat wiring?
Thanks for ANY help.