View visual findings from this job here - https://visionshare.xoi.io/?id=XA-57DC-E1D350799FFD47FF81F531C9A1C5F14A Preform maintenance on (1) Navien water heater, (1) gas fired Force gas water boiler, (2) conventional hydro air handlers and (1) SpacePak high velocity hydro air handler: Replaced and dated air filters : (2) 10 x 20 x 1 (1) 12 x 30 x 1 (1) 20 x 20 x 1 Replaced neutralizer minerals in pump provided by customer on floor next to pump GAS WATER BOILER: * shut power to system * removed flame guard and roll out switch * removed all burners from boiler * immediately found that there was a standing pilot light at the pilot assembly, even though this is a spark ignition system * Spoke with manufacturer and confirmed the gas valve is sticking- Knock on valve to see if pilot will go out- it does not * Shut gas valve and pilot goes out * Vacuum and brushed out all burner tubes * Vacuumed and dusted out under heat, exchanger, and burner cabinet, Boiler cabinet, Piping and all co