Eco Defender Water Heater: Understanding How to Reset the System

Eco Defender water heaters are known for their energy efficiency and environmental friendliness. However, like any sophisticated appliance, they may occasionally require a system reset to address issues or restore optimal functionality. If you’re experiencing problems with your Eco Defender water heater, such as inconsistent heating or error codes, resetting the system might be a necessary step. This guide will provide you with clear instructions on how to safely and effectively reset your Eco Defender water heater.

Understanding the Need for a Reset

A reset on your Eco Defender water heater can resolve issues like error messages, failure to heat water, or system lockouts. It essentially returns the water heater to its default factory settings, clearing any glitches or system errors.

Step 1: Turn Off the Power

Safety first – ensure that the power supply to your water heater is turned off. This can typically be done at your home’s main circuit breaker. Turning off the power prevents any electrical hazards while you perform the reset.

Step 2: Locate the Reset Button

The reset button on an Eco Defender water heater is usually found behind the upper access panel. Use a screwdriver to remove this panel. Once open, look for a red or sometimes black button, often located on the thermostat.

Step 3: Press the Reset Button

Press the reset button firmly. If the system had tripped, you would typically hear a click sound indicating that the reset is complete. If the button doesn’t click, or if it doesn’t stay down, you may need to contact a professional as this could indicate a faulty thermostat.

Step 4: Replace the Access Panel

After resetting, replace the access panel securely.

Step 5: Turn the Power Back On

Restore power to your water heater by switching on the circuit breaker.

Step 6: Monitor the Water Heater

After restoring power, observe the water heater for a few minutes to ensure it starts functioning properly. Check for any error codes on the display and listen for unusual noises. It may take some time for the water to heat up.

Troubleshooting Tips

  • Check the Thermostat Settings: Make sure the thermostat is set to the desired temperature.
  • Inspect for Leaks: Check around the water heater for any signs of leaks or water damage.
  • Look at the Pilot Light: For gas models, ensure that the pilot light is lit. If it’s out, follow the manufacturer’s instructions to relight it.

When to Call a Professional

  • If the reset button does not resolve the issue.
  • If the reset button trips again shortly after resetting.
  • If you notice any leaks, odd smells, or if the water heater is not functioning properly after the reset.


Resetting your Eco Defender water heater can be an effective way to solve some common issues. However, if problems persist after a reset, it’s wise to consult with a professional. Regular maintenance and prompt attention to any signs of malfunction can help ensure your Eco Defender water heater operates safely and efficiently, providing your home with a consistent supply of hot water.

Swift Taylor
Swift Taylor
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