Showed up because there was a problem with the system failing to shut off. I explained to the homeowner that this was because both the heat and cool we’re called on 2 different thermostats on the same system. After diagnosing that I checked both humidifiers and unclogged the bypass humidifier so that it was operating correctly. I then looked at a steam humidifier and sent it to its appropriate settings and opened the water valve so it was also operating correctly. I left the homeowner with a filter and other than the trip and diagnosis fee. I did a humidifier tuneup and the filter free of charge.