Are you having problems with your Navien tankless water heater? Does your water flow seem weaker than usual, or is your water not heating up as quickly as it used to? It may be time to flush your Navien tankless water heater.
Flushing your tankless water heater is an essential maintenance task that helps to remove any build-up of mineral deposits or sediment that can accumulate in the unit over time. In this article, we will show you how to flush a Navien tankless water heater step by step so that you can keep your unit working at its best.
Step 1: Turn Off the Power
Before you start flushing your Navien tankless water heater, make sure that you turn off the power to the unit. You can do this by either unplugging the power cord or turning off the breaker in your electrical panel.
Step 2: Turn Off the Water Supply
Next, you need to turn off the water supply to the tankless water heater. You can do this by closing the isolation valves located on the hot and cold water pipes.
Step 3: Drain the Water Heater
Once you have turned off the power and water supply, you can now drain the water heater. To do this, locate the drain valve at the bottom of the unit and connect a hose to it. Make sure that the other end of the hose is in a safe location where the hot water can drain without causing any damage.
Step 4: Flush the Water Heater
After draining the tank, you can now flush the water heater. To do this, connect a submersible pump to the hot water outlet on the unit and place the pump in a bucket of clean water. Then, connect another hose from the cold water inlet to the bucket. This will create a closed-loop system that will flush out any sediment or mineral build-up.
Step 5: Rinse the Water Heater
Once you have flushed the water heater, you should rinse it out with clean water. To do this, turn off the pump and remove the hoses. Then, open the isolation valves on the hot and cold water pipes and turn on the hot water tap. Let the water flow through the unit for a few minutes to rinse out any remaining debris.
Step 6: Reconnect the Power and Water Supply
Finally, you can reconnect the power and water supply to the Navien tankless water heater. Turn on the isolation valves and turn on the power or plug in the power cord. Wait for the unit to heat up, and then test the water flow to ensure that it is working correctly.
Conclusion
Flushing your Navien tankless water heater is a simple maintenance task that can help to keep your unit working efficiently. By following these six steps, you can ensure that your water heater is free from mineral deposits and sediment build-up. So, why not give it a try and see the difference it can make to your hot water supply?