View visual findings from this job here - https://visionshare.xoi.io/?id=XA-57DC-186F9C3547594570B85DA61D3630EA21 Preform maintenance on (1) Lennox gas fired water boiler with (3) heating zones: shut power to boiler removed flame guard and all burner tubes vacuumed and dusted under heat exchanger and burner section vacuumed and dusted boiler cabinet, piping and components clean and clear secured and inspected electrical wiring, connections, safety’s and zoning panel vacuumed and brushed all burner tubes, clean and clear Clean spark igniter with copper bristle brush, and polish clean with steel wool Test And inspect expansion tank, Water feed, Backflow, Spiral vent and relief valve Reassemble boiler and all components inspected flue piping off system return power to boiler call for heating at basement thermostat- boiler fires- normal operations Circulator pump is on and running and supply and return piping are all heating properly- Boiler shuts down at temp of 180- okay Tested the f