Why is My 1.5 HP Submersible Pump Tripping and Drawing 20 Amps?
Have you ever experienced the frustration of your 1.5 HP submersible pump tripping repeatedly and drawing significantly high ampere (20 amps)? This issue can be alarming and disruptive to any water management system. In this article, we will delve into the causes behind these frequent trips and increased current draw, focusing on key electrical and mechanical factors. By understanding the root causes, you can take appropriate measures to resolve the problem and ensure the longevity of your pump.
Understanding the Problem
The excessive tripping and high current draw can be attributed to several issues. These problems often stem from overloading or high loading on the pump. When the pump's load exceeds its capacity, it can draw more current and trip the circuit breaker or similar protective device. Understanding the causes will help you diagnose and rectify the issue effectively.
The Root Causes
1. Impeller Jam
The jamming of the pump impeller is one of the top causes of excessive current draw and tripping. When the impeller gets clogged or obstructed, it cannot efficiently move water through the pump. This blockage creates a load on the motor, causing it to work harder and draw more current to overcome the resistance. As a result, the motor overheats, and the pump may trip the circuit breaker to prevent damage.
2. Motor Dry Running
If the pump has been running without water for an extended period, it is known as motor dry running. This condition can cause severe damage to the motor windings, leading to the pump tripping and drawing more than the intended amperage. Dry running can result in electrical arcing, overheating, and even potential fire hazards. It is crucial to ensure that the pump always operates within its correct water level to prevent dry running.
Consequences of High Ampere Draw
When a pump draws more than its rated amperage, several consequences may arise: The pump will trip the circuit breaker or overload protection device. The motor may overheat, leading to reduced efficiency and potential failure. Energy consumption will increase, leading to higher electricity bills. The risk of component failure and the overall system efficiency will decrease.
Solving the Problem
To address the issue of your 1.5 HP submersible pump tripping and drawing high amps, follow these steps:
1. Inspection and Cleaning
The first step is to inspect the pump for any visible obstructions in the impeller. If impeller jamming is the cause, carefully remove the pump and inspect the impeller for any debris or blockage. Clean the impeller and the pump body to ensure optimal performance. This maintenance can significantly reduce current draw and prevent tripping.
2. Ensure Proper Water Level
Make sure that the pump always operates within its correct water level. Running the pump without water (dry running) is a common cause of motor damage and excessive current draw. Ensure that the pump's discharge line is properly sealed, and the intake is submerged to the required depth.
3. Check Electrical Connections and Grounding
Inspect the electrical connections for any signs of wear or corrosion. Check the grounding and bonding to ensure that the system is safe and properly protected against electrical faults. Proper electrical work can prevent tripping and ensure the pump operates efficiently.
4. Consider Replacing the Motor or Impeller
If the problem persists after cleaning and proper water level adjustments, the motor or impeller may be faulty. Consider replacing these components, especially if the pump is older. A professional plumber or electrician can help you determine the necessary replacement parts and perform the installation.
Conclusion
Understanding and addressing the causes of your 1.5 HP submersible pump tripping and drawing high amps is crucial for maintaining the efficiency and longevity of your water system. By inspecting for impeller jams and ensuring proper water levels, you can significantly reduce the risk of excessive current draw. Regular maintenance and proper electrical handling are key to maintaining a safe and efficient water management system. If the issue persists, consulting a professional is recommended to identify the problem and perform necessary repairs.