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 water panel was calcified over and the condensation pump is struggling to pump out the condensation. Tech informed client and made a few options. Client went with new humidifier water panel. Tech removed old one and installed new one. Tested humidifier working well now