Shut down gas into boiler. Remove existing gas piping from union Into inlet side of gas control remove all thermostat couple and gas tubing into pilot burner. Remove gas valve from manifold. Install new OEM gas control isolation system. Re connect all gas piping. Re calibrate manifold gas pressures as per manufacturer specs. Fire boiler and test for proper function.
After restoring power to boiler low water cut off LED activated. Drained boiler and cleaned sight glass also cleaned bottom isolation valve as it was clogged with debris and mud. Was able to confirm low water cut off is shot and cleaning is not solution. Customer needs to replace low water cut off.
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