Hose clamp on exaust was never tighten water leaking all over furnace burner section , flame sensor soaking wet, hose to vent trap was not connected,. . Dried up water pulled trap flushed out , hooked up hoses and tighten ,made sure unit was draining and unit was working properly at this time. Warrantied do to improper installation, just told customer there was loose connection fixed ,trap needed flushed and would warranty service call.