Neutralizer stone 1 Gas Hot Water Boiler: Triangle Tube High efficiency Boiler - Perform a tune-up and cleaning to help ensure reliable and safe operation. Inspect for cracks & deterioration of Heat Exchanger Check and clean Burners tubes and heat exchanger- ok, vacuumed-ok Check and clean flame sensor/flame rod and ignition Assembly-ok Spark igniter. Check Safety Controls-ok Check electrical wiring and components-ok Check Gas valve & Gas Line-ok Check Combustion Air & Exhaust-ok Check Temperatures & Water pressure settings; 15psi Performance-ok Check and run Thermostats- operating well at this time. Check zoning operation-isolate and run zoning. Check Honeywell zone valves ok amps and voltage check. Check water feeder, low water cut off, and expansion tank. Check for water leak no leakage at this moment. Run and monitored for good operations. All zones are fine supply and return lines getting hot. Perform check for indirect HWH. Check for water leak, no leakage at this time. Check c