How to Reset Navien Tankless Water Heater

If you own a Navien Tankless Water Heater, you know how convenient and efficient it is to have hot water on demand. But one of the common troubleshooting issues many owners face is their heater not heating or malfunctioning altogether. When this happens, your first thought may be to call for a repair person.

How to Reset Navien Tankless Water Heater

However, one easy step you can try before any repairs are necessary is resetting your Navien Tankless Water Heater to its factory settings—a helpful guide on how to reset navien tankless water heater that will take you through the process.

What is Navien Tankless Water Heater?

Navien Tankless Water Heaters are a type of hot water heating system that does not use a traditional storage tank. Instead, the heater takes in cold water and heats it as it passes through an internal heat exchanger. This allows for instant hot water when you need it and energy savings due to a lower standby loss than with traditional tank-style water heaters.

Needed Tools and Supplies

To reset your Navien Tankless Water Heater, you will need a Phillips head screwdriver and a flat-head screwdriver. You may also want to have an adjustable wrench on hand in case the screws are difficult to remove by hand.

10 Instructions on How to Reset Navien Tankless Water Heater

Step 1: Turn off the Power

Before you begin the reset process, make sure to turn off the power to your Navien Tankless Water Heater. This can be done by turning off the circuit breaker switch or by unplugging it from the wall outlet.

Step 2: Locate and Remove Access Panel

Locate the access panel on your Navien Tankless Water Heater. Depending on the model, this panel may be located on the front or side of the unit. Using a Phillips head screwdriver, remove all screws from the access panel and set them aside for later.

Step 3: Locate the Reset Button

Once the panel is removed, you should see several components inside, including circuit boards and wiring. Look for a small button labeled “reset” and press it with a flat-head screwdriver. The circuit boards may need to be removed in order to access the reset button.

Step 4: Wait for the Reset

Once you have pressed the reset button, wait for a few seconds before releasing it. You should hear a series of beeps as the unit resets itself. If you do not hear any sound, try pressing and holding the reset button for a few more seconds.

Once You Have Pressed the Reset Button

Step 5: Turn on the Power

Once the reset is complete, turn the power back on to your Navien Tankless Water Heater. You may need to press and hold the test button for several seconds in order for it to be fully activated. Turn on all hot water faucets throughout the house in order to test that the reset has been successful.

Step 6: Replace the Access Panel

Once you have successfully tested the Navien Tankless Water Heater, it is time to replace the access panel. Carefully line up the screws and use a Phillips head screwdriver to reattach them. The panel should fit securely in place.

Step 7: Test Hot Water

Now that the access panel is back in place, test to make sure hot water is flowing properly throughout your house. Turn on all hot water faucets and check for a steady stream of hot water. If there are any issues with the flow or temperature, contact a professional for repairs.

Step 8: Monitor Temperature

Once the reset has been completed, it is important to monitor the temperature of your hot water to make sure it is not too hot or too cold. If there are any fluctuations in the temperature, contact a professional for further assistance.

Monitor the Temperature of Your Hot Water

Step 9: Reset Regularly

It is recommended that you reset your Navien Tankless Water Heater on a regular basis in order to keep it running smoothly. How often you should reset will depend on the specific model, so be sure to consult your user manual for more information.

Step 10: Follow the Manufacturer’s Instructions

To ensure the proper functioning of your Navien Tankless Water Heater, always follow the manufacturer’s instructions for resetting and maintenance. If you are ever unsure about how to proceed with any part of the reset process, contact a professional for assistance. Resetting your Navien Tankless Water Heater is an important step in keeping it running optimally and efficiently.

By following these steps, you can ensure that your water heater will continue to provide years of reliable service. If you ever experience any issues with your Navien Tankless Water Heater, contact a professional for further assistance.  With regular maintenance and resetting, you can be sure that your water heater will remain in proper working condition.

8 Maintenance Tips

1. Check Ventilation Fans

Make sure the power to the tankless water heater is turned off, and then check the ventilation fans. Ensure that they are cleaned of any dust or debris that may have accumulated over time, as this can impede proper airflow and affect performance.

2. Check for Gas Odors

If a gas odor is present, shut off the gas supply to the tankless water heater and call a qualified service technician to inspect the unit. The gas odor could be a sign of a gas leak.

3. Check the Combustion Chamber

The combustion chamber of your Navien tankless water heater should be cleaned every six months. This can be done by removing the burner cover, attaching a vacuum hose, and then vacuuming out any dust or debris that has built up over time.

4. Check the Air Filter

The air filter should be checked and cleaned periodically to ensure that it is free of any dirt or debris. This will help keep your tankless water heater operating efficiently and safely.

5. Clean Heat Exchanger

The heat exchanger should be cleaned every two to three years. This can be done by using a brush or chemical cleaner to remove any dirt or scale that may have built up over time. Cleaning the heat exchanger will help ensure that your tankless water heater is operating safely and efficiently.

The Heat Exchanger Should Be Cleaned

6. Check Wiring Connections

It is important to check the wiring connections of your Navien tankless water heater on a regular basis. This includes making sure that all wires are securely connected, as loose or broken wires can cause safety issues.

7. Check Gas Pressure

The gas pressure should be checked and adjusted as needed to ensure that it is within the manufacturer’s recommended range. This will help keep your tankless water heater operating safely and efficiently.

8. Reset Unit

If issues with your Navien tankless water heater persist, you may need to reset the unit. This can be done by turning off the power supply to the unit, pressing and holding the reset button for five seconds, and then turning the power back on. If this does not fix the issue, it is best to seek advice from a qualified service technician.

By following these eight maintenance tips, you can help ensure that your Navien tankless water heater is operating safely and efficiently. Regular maintenance will also help prevent any costly repairs in the future. If you have any questions or concerns, consult a qualified service technician for assistance.

Frequently Asked Questions

Why Navien Tankless Water Heater is Not Heating

If your Navien tankless water heater is not heating water properly, it may be due to an issue with the wiring connections or gas pressure. Make sure that all wires are securely connected and that the gas pressure is within the manufacturer’s recommended range. If this does not resolve the issue, you should consult a qualified service technician for assistance.

How Often Should I Clean the Heat Exchanger?

The heat exchanger should be cleaned every two to three years. This can be done by using a brush or chemical cleaner to remove any dirt or scale that may have built up over time. Cleaning the heat exchanger will help ensure that your tankless water heater is operating safely and efficiently.  

How Often Should I Check the Wiring Connections?

It is important to check the wiring connections of your Navien tankless water heater on a regular basis. This includes making sure that all wires are securely connected, as loose or broken wires can cause safety issues. If you have any questions or concerns, consult a qualified service technician for assistance.

How Often Should I Check the Air Filter?

The air filter should be checked and cleaned periodically to ensure that it is free of any dirt or debris. This will help keep your tankless water heater operating efficiently and safely. If you have any questions or concerns, consult a qualified service technician for assistance.

The Air Filter Checked
 and Cleaned

Conclusion

Resetting a Navien Tankless Water Heater may seem like a complicated or intimidating task, but it is actually quite simple when broken down into the steps described above on how to reset navien tankless water heater. Although this process should be sufficient to get your heater back up and running, you may want to consider having a professional take a look if problems persist.

However, the reality is that this reset process is often all that’s necessary in order to restore dirty combustion chamber issues and other similar functions. Finally, make sure to follow up with regular maintenance on your Navien tankless water heater in order to prevent future problems; by doing so, you can extend the life of your heater and potentially save yourself from purchasing costly replacements down the line.

Angela Ervin

Angela Ervin

Angela is the executive editor of DIY quickly. She began her career as an interior designer before applying her strategic and creative passion to lifestyle and home. She has close to 15 years of experience in creative writing and online content strategy for housekeeping, home decorations as well as other niche efforts. She loves her job and has the privilege of working with an extraordinary team. She lives with her husband, two sons, and daughter in Petersburg. When she's not busy working she spent time with her family.

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