What does the Yutong fault light 'alrdrye' indicate?
3 Answers
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.
I've been driving Yutong buses for 10 years, and that time when the ABS warning light came on really confused me. Usually it's just that the wheel speed sensor is dirty or faulty, and the system misjudges when it can't detect changes in wheel speed. ABS is the anti-lock braking system, which prevents wheel lock-up during hard braking. If the light stays on without repair, braking may skid on rainy or snowy slippery roads, increasing the risk of accidents. I recommend slowing down immediately and driving to a repair shop. The technician will use a diagnostic tool to read the fault code, and common solutions are sensor replacement or wiring repair. Regular cleaning of dust and debris around the wheel hub during maintenance can reduce 80% of similar issues. Don't risk your life to save a few hundred bucks on repairs—safety should always come first.
Our family commutes with a Yutong bus, and whenever the ABS light comes on, my dad urges us to get it fixed immediately. It could be due to a faulty wheel speed sensor or a loose connector, causing the ABS system to mistakenly detect a problem. If you notice longer braking distances or instability while driving, it's time to pay attention. Don't delay when the light comes on—drive slowly to the nearest 4S shop for inspection. Last time, the repair cost less than 500 yuan to replace a new sensor, which solved the issue. For prevention, regularly cleaning the wheel speed components and avoiding driving through deep water can help. Issues with the braking system affect the safety of the whole family's travel—small problems can turn into big hazards. Just make it a habit to get a comprehensive maintenance check every six months.
