Tech came out to perform heating maintenance inspection. Tech tested the heating system: checked gas pressure, temperature, exhaust fan amperage test, blower motor amperage test, flame rectification sensor test, exhaust fan vacuum test and a combustion analysis. Furnace is in great working order at this time. Tech found the humidifier pad was badly calcified and leaking onto the floor tech informed client and quoted to replace humidifier pad. Client approved. Tech removed old calcified humidifier pad and installed new one tested humidifier working well no more leaks