Tankless water heaters will build up calcium and debris on the elements and the filters inside the machine. It’s important to perform a flush with food-grade, white vinegar at least once every 12 to 18 months. Performing this simple maintenance will improve the efficiency and life of your water heater.

What temperature should a Navien tankless water heater be set at?

120°F
This boiler’s water temperature is set to 120°F (49°C) at the factory for your safety and comfort. Increasing the temperature increases the risk of accidental scalding.

How do you turn off a Navien tankless water heater?

To turn the water heater on or off, press the Power button. When the power is on, the temperature will appear on the front panel display. If an error message appears, you can try resetting the water heater to resolve the problem. To reset the water heater, press the Reset button.

How do you clean a navien tankless water heater?

Remove the cold and hot water caps, connect your inlet hoses and place the other ends into your bucket. 4. Open the cold and hot water valves from the unit to your inlet hoses to empty water from your unit into the bucket. 5. Remove and clean the cold and hot water screens. Remember to screw back in. 6. Remove and clean the waste trap.

How can I get the most out of my navien?

Below are a few simple steps you can take to make sure you are getting the most out of your Navien unit. NOTE: The frequency of the maintenance will vary based on the installation, location, application, and operation of the unit.

Where is the water screen on a navien water heater?

All Navien tankless water heaters have water screens on the cold water inlet, and the NPE-Advanced models have an additional screen on the recirculation inlet. Navien combi-boilers have inlet water screens on the DHW cold-water connection, along with a screen between the heating supply and return connections.

Where is the screen on a navien combi boiler?

Navien NHB boilers have a screen on the return connection. All Navien units (water heaters, combi-boilers and boilers) have inlet air screens inside the cabinet just below the air intake collar to prevent debris from being pulled into the blower, burner and heat exchanger assembly. The condensate trap is located at the bottom of the unit.