How to Deal with Continuous HOWO Air Pressure Alarm Sound?
2 Answers
It may be due to the excessive sensitivity of the anti-theft device. There is a sensitivity adjustment knob on the vibration sensor of the anti-theft device; try fine-tuning it. It could be a fault with the main control door grounding wire, commonly known as a door switch failure. In this case, it might be necessary to get it repaired. The alarm adjustment box is usually located under the dashboard, equipped with adjustment knobs. You can adjust it yourself or seek help from a professional who installed the alarm for debugging.
I've been driving trucks for over 20 years and seen plenty of cases with non-stop air pressure alarms. For HOWO trucks, if the air pressure system alarm keeps ringing, it's most likely due to insufficient pressure or a leak. You should first pull over and check, letting the engine run to allow automatic inflation. If it still rings, there might be leaks in the air reservoir, valves, or pipelines. I once encountered a small hole at the air hose joint—applying soapy water made bubbles appear, but the spot was hidden and hard to notice. A continuous alarm means the braking system might fail, which is extremely dangerous and must not be ignored. I suggest finding a safe place to stop, turning on the hazard lights, and calling a professional mechanic for help. Regular maintenance checks on the dryer and sensors can prevent many issues.
