Top 5 Submersible Drainage Pump Issues & How to Fix Them

Submersible drainage pumps are essential for managing water in basements and other low-lying areas. However, like all mechanical devices, they can encounter issues over time. Understanding the common problems associated with submersible drainage pumps will help you address them effectively and maintain your pump's efficiency.

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1. Clogged Impeller

A frequently encountered issue with submersible drainage pumps is a clogged impeller. This often happens due to debris, such as leaves, dirt, or stones, getting trapped inside the pump. A clogged impeller can lead to reduced efficiency or a complete failure to pump water.

To fix this, turn off the pump and disconnect it from the power supply. Remove the pump from the water and inspect the impeller for any obstructions. Clean the impeller carefully using a brush or cloth. After cleaning, reassemble the pump and test its operation.

2. Overheating

Submersible pumps may overheat if they run dry or if there’s a significant build-up of debris around the motor. Overheating can cause permanent damage to the pump and shorten its lifespan, so it’s crucial to address this issue promptly.

To prevent overheating, check the water level before operating the pump. If the pump is running dry, consider installing a float switch to automatically shut off the pump when the water level is too low. For pumps operating in murky water, ensure regular maintenance to remove any buildup that may block air circulation around the motor.

3. Electric Failure

Electrical issues can prevent your submersible drainage pump from functioning correctly. This can involve tripped circuit breakers, blown fuses, or a malfunctioning power cord. A damaged cord may lead to electrical shorts, which can be dangerous.

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To troubleshoot electrical failures, inspect the power supply and ensure the pump is plugged in correctly. If it’s a tripped breaker, reset it and check if the pump starts again. For damaged cords, replace them promptly to avoid further issues. If electrical issues persist, consult a professional electrician.

4. Mechanical Seal Damage

Mechanical seals prevent water from entering the motor casing of the pump. Over time, these seals can wear out, leading to water ingress that can damage internal components. If you notice water leaking from the pump, it’s likely a sign of seal failure.

Addressing this involves replacing the damaged seal. To do so, unplug the pump and disassemble the casing carefully. Replace the faulty seal with a new one, ensuring it fits snugly. Reassemble the pump and check for leaks before operating it again.

5. Wrong Size or Type of Pump

Using the incorrect size or type of submersible drainage pump for your application can lead to insufficient performance. If your pump continually struggles to handle the water volume, it may be underpowered for your needs.

To solve this, reassess your requirements and select a pump that matches your specific needs, considering factors such as flow rate and head height. Consulting with a professional can provide insights into the best options available for your situation.

Regular maintenance and timely troubleshooting are key to ensuring your submersible drainage pump operates efficiently. Should you experience difficulties or need advice on selecting the right pump for your needs, feel free to contact us. We’re here to help!

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