What does the Yutong fault light 'alrdrye' indicate?

[BrielleFitz]

Yutong fault light 'alrdrye' indicates that the vehicle's air dryer needs to be checked. Air Dryer: An air dryer is a drying and atomizing mechanical device that converts liquid inside the vehicle into gas and discharges it through heating. Functions of the Air Dryer: Air dryers can be classified based on different characteristics such as the operation process, operating pressure, heating method, movement method of wet materials, or structure. According to the operation process, air dryers are divided into batch (intermittent) and continuous types. Vacuum operation can reduce the partial pressure of wet vapor in the space, accelerate the drying process, lower the boiling point of wet vapor and the drying temperature of the material, making it less likely for steam to leak out.