Quanzhou Ausenist Technology Co., Ltd

Diagnose frequent pump starts by checking leaks, non-return valves, pressure feedback, start pressure and YS820 sleep settings.

Plan drive roles, sensors, communication, rotation and fault tests for a YS820 system with one master and up to four auxiliary pumps.

Understand the YS820 anti-freeze function, its limits and the additional measures required for pumps exposed to low temperatures.

Choose a standard 220V or 380V YS820 package and learn what information is needed for voltage, branding and parameter customization.

Use master redundancy, auxiliary fault bypass, pump rotation and commissioning tests to improve YS620 or YS820 multi-pump reliability.

Understand how the YS620 detects low-pressure water-shortage conditions, stops the pump and manages automatic restart attempts.

Compare the documented strengths of the Ausenist YS620 and YS820 and learn which project data is needed for a reliable model recommendation.

Use this structured checklist to diagnose unstable pressure, frequent starts and poor sleep behavior in a YS620-controlled pump system.