Homeowner concerned about humidity in the home. Humidifier isn’t ideally installed as back pressure from blower in furnace is overtaking blower from dehumidifier. Make up air is tied right into dehumidifier and I was told that three had been replaced under warranty so far. 90 pint model may not be big enough for both zones. When dehumidifier is running but ac is not, that zone closes. This is not allowing dehumidified air to flow into the zone. Upstairs coil is potentially leaking