How to Detect a Blown Water Heater Element: A Comprehensive Guide

Having a reliable and functional water heater is essential for a comfortable home environment. However, issues can arise with water heaters, such as a blown element. In this article, we will guide you through the process of identifying a blown water heater element and provide detailed steps to help you troubleshoot common issues.

Common Signs of a Blown Water Heater Element

If your water heater is not functioning as it should and you start experiencing cold showers, suspecting a blown element is a logical step. This problem is particularly prevalent, as the bottom element is more likely to burn out due to its primary role in heating begins at the bottom because that is where most issues start.

Testing the Bottom Element

To test the bottom element, follow these steps:

Disconnect the power supply to the water heater to ensure the wires from the bottom an OHM meter to check the reading between the two screws.If there is no reading, the element is likely blown. However, if the element should read properly but doesn't, check for continuity between the live screw and the steel tank (not the metal cover).Repeat the same process for the top element if needed.

Most water heaters have both a top and bottom element, and often, only one of them will fail. Testing the top element next is a good practice because sometimes, it is the top element that fails.

Other Indicators and Troubleshooting

If your electric water heater isn't working and you suspect a blown element, consider other possibilities as well. Electrical components like the circuit breaker (MCB) or Earth Leakage Circuit Breaker (ELCB) can trip, or there might be an issue with the current draw. A working heater should draw current, and a blown element will not do so. If your circuit breaker trips or you experience electrical shocks, these could be additional signs of a blown element or another fault in the system.

Checking Circuit Breakers and Fuses

Inspect your circuit breaker board for any tripped breakers and check the fuses, if present, on the plug. In the UK, many corded appliances use three-pin plugs with built-in and replaceable fuses, so ensure these are not the cause of the issue.

Replacement and Maintenance

Replacing a blown element is often less expensive than replacing the entire water heater. Ensure you have a cheap electric testing device to diagnose the problem. If only one element is faulty, replacing it can save you a significant amount of money compared to a full replacement.

Conclusion

By following these steps, you can effectively troubleshoot and determine whether your water heater element is blown. Regular maintenance and monitoring the system can help prevent such issues and ensure that your water heater continues to function efficiently and safely.