View visual findings from this job here - https://visionshare.xoi.io/?id=XA-2F41-7126A4F86FC04B69A16A8846D1210A95 Preform maintenance on Weil McLain high efficiency gas water boiler, (5) unico hydro air handlers, and (1) Mitsubishi ductless split: * shut power down to system * removed boiler cover door * removed flame rod and spark igniter- cleaned with copper bristle brush and polished with steel wool * removed condensate trap and flushed clean * prime with fresh water and installed back in place * inspected neutralizer minerals- okay * tested neutralizer pump and discharge line- normal operations * inspected heat exchanger, flue piping and motor assembly * inspected fresh air and exhaust venting- ok * tested and checked water feed / back flow / air vents / expansion tank and relief valves- okay * secured and inspected zoning panels and electrical wiring / connections * return power to boiler * run and test all heating and DHW zones- operational * polished and wipe down all equipm