Navien error code 736 reset

Navien error code 736 reset: Dealing with an error code on your Navien system can be frustrating, but fear not! Resetting the Navien error code 736 is a fairly straightforward process that can be done with a few simple steps. It’s important to address this issue promptly to ensure your system is running smoothly. Follow our guide to easily reset the error code and get your Navien system back up and running in no time.


Navien error code 736 reset – What could be causing this error?

When encountering a Navien error code 736 reset issue, several possible causes may be contributing to the error message. Understanding these potential causes can help in troubleshooting and resolving the problem efficiently. Some of the common reasons for this error code include:

  • Water Flow Issues: A disruption in water flow or insufficient water pressure can trigger error code 736.
  • Gas Supply Problems: Inadequate gas supply or issues with the gas line can lead to the error code 736 reset.
  • Flame Rod Concerns: Problems with the flame rod sensor, such as dirt accumulation or a faulty connection, could be causing the error.
  • Ignition Failure: Issues with the igniter or the ignition sequence may result in error code 736 being displayed.
  • Temperature Sensor Malfunction: If the temperature sensor is not functioning correctly, it can trigger the error code and require a reset.
  • System Settings: Incorrect settings or configurations within the Navien system can also lead to the error message 736 reset.

By checking and addressing these potential causes, you can effectively troubleshoot the Navien error code 736 reset and restore your system to proper functionality.

Navien error code 736 reset – How to Fix?

To reset Navien error code 736 on your Navien tankless water heater, follow these steps:

  1. Turn off the heater: Locate the power switch on your Navien unit and switch it off. Wait for at least 30 seconds to ensure the system completely shuts down.
  2. Reset the system: After waiting, turn the power back on. Press and hold the ‘Reset’ button on the front panel for about 10 seconds until you hear a beep.
  3. Check for resolution: Allow the system to restart and check if the error code 736 has cleared. If the error persists, you may need to contact a professional technician for further assistance.
  4. Maintenance: Regular maintenance of your Navien system can help prevent errors like code 736. Ensure proper ventilation, clean filters, and schedule professional tune-ups as needed.

By following these steps, you can effectively reset Navien error code 736 on your tankless water heater.


If you encounter Navien error code 736, follow these steps to reset the system: First, press the power button to turn off the unit. Next, wait for 30 seconds before turning it back on. If the error persists, consult the user manual for further troubleshooting instructions or contact Navien customer support for assistance.

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