clean an electric water heater

How to Clean an Electric Water Heater

An electric water heater is an essential appliance in most households, providing hot water for showers, washing dishes, and other activities. Over time, mineral deposits and sediment can build up inside the tank, reducing its efficiency and shortening its lifespan. Regular maintenance and cleaning can help keep your Electric Water Heater functioning optimally and extend its lifespan.

Steps to clean an electric water heater:

Following are the total steps you need to follow to clean an electric water heater at home.

steps to clean an electric water heater

Step 1: Turn off the power supply

Before you begin cleaning your electric water heater, turn off the power supply to the unit. You can do this by switching off the breaker or disconnecting the power source. Turning off the power supply will prevent any accidents or injuries while you are cleaning the appliance.

Step 2: Turn off the water supply

Next, turn off the water supply to the water heater. You can do this by turning off the main water supply valve or the valve located on the cold water inlet line. Turning off the water supply will prevent water from entering the tank while you are cleaning it.

Step 3: Drain the tank

After turning off the power and water supply, it’s time to drain the tank. Connect a garden hose to the drain valve located at the bottom of the tank and direct the other end of the hose to a floor drain or outside. Open the valve to allow the water to drain out of the tank. The water may be hot, so take care to avoid burns. Allow the water to drain out completely.

Also check: Pros and Cons of a Tankless Water Heater

Step 4: Flush the tank

Once the tank is empty, it’s time to flush it. This will help remove any sediment and mineral deposits that may have accumulated in the tank. Close the drain valve and turn on the water supply to the tank. Allow the tank to fill up partially and then drain it again. Repeat this process a few times until the water runs clear.

Step 5: Clean the tank

After flushing the tank, it’s time to clean it. You can use a solution of water and vinegar or a commercial cleaning agent specifically designed for electric water heaters. Follow the manufacturer’s instructions carefully when using a commercial cleaning agent. If using vinegar, mix equal parts of water and vinegar and pour it into the tank. Allow it to sit for a few hours or overnight to dissolve any remaining mineral deposits. Drain the tank again after cleaning.

Step 6: Replace the anode rod

The anode rod is a component inside the tank that helps prevent corrosion. Over time, the anode rod can become corroded and should be replaced. Consult the owner’s manual or a professional plumber for guidance on how to replace the anode rod.

Step 7: Refill the tank

After completing all the cleaning and maintenance tasks, it’s time to refill the tank. Close the drain valve and turn on the water supply to the tank. Allow the tank to fill up completely before turning on the power supply.

Step 8: Turn on the power supply

Once the tank is full, turn on the Power Supply to the electric water heater. Allow the water to heat up before using it.


In conclusion, cleaning an electric water heater is an important maintenance task that can help keep the appliance functioning efficiently and extend its lifespan. Regular cleaning and maintenance can also help prevent costly repairs and replacements in the future. By following these steps, you can clean your electric water heater and ensure it continues to provide hot water for your household needs. However, if you are unsure about any aspect of the cleaning process, it’s best to consult a professionals for guidance.

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