What Are The Reasons And Solutions For Sudden Shutdown And Non Operation Of Submersible Pumps

Apr 08, 2026

A small number of users may encounter the phenomenon of the submersible pump suddenly stopping and not working during the use of the submersible pump. Without understanding the internal structure of the submersible pump, they may mistakenly believe that it is a quality problem with the submersible pump. So, what is the reason for the sudden shutdown of the submersible pump? Below are the specific reasons why the submersible pump suddenly stops working and the solutions for sudden shutdown of the submersible pump for your reference:

The submersible pump products used, such as stainless steel submersible pump products, are equipped with a non burning protection device inside the submersible pump. As long as the temperature rise of the submersible pump motor exceeds the preset temperature, the submersible pump will automatically start the protection system to stop running. Some users take ordinary submersible pumps to transport hot water and run for about 20 minutes before the submersible pump will automatically stop running. The submersible pump itself will heat up during operation. If using ordinary submersible pumps instead of high-temperature resistant submersible pump products, the submersible pump will suddenly stop. If using submersible pump products without protection devices, it will cause the motor to burn out. If the reason for the sudden shutdown of the submersible pump is due to the high temperature of the medium being transported, the solution to the sudden shutdown of the submersible pump is to recommend the use of high-temperature resistant submersible pump products, which can withstand temperatures up to 80 degrees Celsius.

 

If the submersible pump product used relies on the configured control cabinet to protect the submersible pump, such as submersible sewage pumps, which usually rely on the control cabinet to achieve protection, the reason for the sudden shutdown of the submersible pump may also be due to the phenomenon of the submersible pump suddenly stopping due to overcurrent causing the air switch to trip. The solution to this sudden shutdown of the submersible pump is to increase the head of the submersible pump or install a valve on the outlet pipeline to control the water output of the submersible pump to reduce the current of the submersible pump and avoid this phenomenon.
Due to the lack of protective measures for submersible pumps, sudden shutdown of submersible pumps may occur due to motor burnout caused by phase loss, overheating, or overload. After repairing the submersible pump motor, a corresponding pump control cabinet should be configured to protect the submersible pump.