Keep On Going Despite Navien E12 Error

Navien products are some of the most reliable and efficient energy-saving systems you can buy. Despite their impressive engineering, there’s one issue you might face as a Navien user: the dreaded E12 error code. Don’t panic - keep reading to find out what it is and how to troubleshoot it.

Navien E12 error occurs in the control board when it’s unable to recognize the necessary internal components. It’s important to note that this error is only found in mini-heater units, not in full-size heaters or boilers. It’s very common in Navien systems that use a 118mm inducer.

Regardless, once you encounter the Navien E12 error, the first thing you should do is reset the unit by turning off the power and waiting a few minutes to turn it back on. If that doesn’t do the trick, then it’s time to dig deeper and investigate what’s causing the problem. Here are some of the possible solutions:

  1. Check the wiring connections of the inducer motor, making sure they’re securely fastened and the power cord is connected.
  2. Inspect the inducer motor for any signs of wear, such as holes in the housing or in the internal components.
  3. Remove and reinstall the inducer motor to make sure it’s properly seated.
  4. Clean out any dust or debris from the inducer motor.
  5. If the inducer motor isn’t functioning properly, you might need to replace it.

In some cases, you may need to hire a certified Navien technician to diagnose and repair the issue. It’s important to do this as soon as possible so that you don’t risk damaging your system further. To find a certified Navien repair technician near you, check out our Directory of Appliance Repair Technicians.

No matter the issue, don’t let a Navien E12 Error code stop you from getting the best performance out of your system. With the right steps, you can troubleshoot the problem and have your system running smoothly again in no time.

in Your Tracks

  1. What is an E12 Error Code on a Navien system?

An E12 Error Code on a Navien system indicates that there is an issue with the water flow valve or piping.

  1. Where does the E12 Error Code show up on my Navien system?

The E12 Error Code will be displayed on the digital display of the Navien water heating system.

  1. What could be causing an E12 Error Code on my Navien system?

The E12 Error Code can be caused by a range of factors, including a faulty water flow valve, low water pressure, blocked pressure relief valves, or sediment in the pipes.

  1. How can I fix an E12 Error Code on my Navien system?

The most effective way to address an E12 Error Code on a Navien system is to perform a full system flush and to check all the system components, including the water flow valve, pressure relief valves, and piping.

  1. Is there someone I can call to help me with an E12 Error Code on my Navien system?

Yes. If you are having trouble with diagnosing and addressing an E12 Error Code on a Navien system, you can always call a certified Navien technician for help.

  1. Reset the unit
  2. Check wiring connections, inspect for wear
  3. Reinstall the inducer motor
  4. Clean any dust or debris
  5. Replace inducer motor if necessary, or hire a certified Navien technician