How to Fix Navien Error Code 012

Navien tankless water heaters are some of the best of the bunch, but that doesn’t mean you won’t run into an error code or two while your unit is in service. There are plenty of Navien error codes, but some are more common than others, like error code 012.

After over 15 years of servicing tankless water heaters in Los Angeles County and its surrounding cities, we’ve gained a wealth of experience with Navien tankless water heaters. This knowledge base gives us a keen understanding of how these machines work inside and out, making resolving error codes a walk-in-the-park for our technicians.

In this article, we’ll fill you in on what Navien error code 012 means and how you can resolve it so you can feel confident in how you decide to handle the error code. We want to be upfront with you and let you know that resolving Navien error code 012 will require the help of a professional.

Additionally, some sources claim all you need to do to resolve an error code is unplug your tankless water heater and plug it back in again. This practice may make the error code disappear, but the underlying issue will remain, and the code will return.

Now, let’s jump in by getting an overview of Navien error code 012 before getting into how to resolve it.

What Does Navien Error Code 012 Mean?

If you see Navien error code 012 pop up, it means your tankless water heater is experiencing flame loss. This issue can have several different causes, with some being more common than others.

The first potential issue is gas pressure. If your tankless water heater has inadequate gas pressure, then it won’t be able to produce a flame, resulting in flame loss. This issue is one of the more common causes of error code 012.

Several other issues can trigger Navien error code 012. Another potential root cause is an internal leak, which is slightly more problematic. Other issues include an undersized gas line, a bad regulator, or in rare instances, a bad gas valve within the tankless water heater.

Now that you know how Navien error code 012 is triggered, let’s look at how you can resolve the issue with the help of a professional.

So, How Do You Fix Navien Error Code 012?

Once you’ve gotten in touch with a professional technician, they’ll come out and conduct a full inspection of your tankless water heater and full plumbing system. Quality companies perform full plumbing inspections to ensure that there is nothing else in the system causing the error code to pop. This inspection can also root out other issues that may need attention in the future.

Once your technician has found the cause of the error code, they will address it accordingly. These fixes could be anything from resizing the gas line and bringing the gas pressure up to spec to calling the gas company out to replace a bad regulator within the tankless water heater.

Seeing Other Error Codes?

You’ll probably end up experiencing other types of error codes throughout your Navien tankless water heater’s lifespan. Not every error code is easy to resolve, and some may result in complete replacements if the damage is severe enough.

For a look at some of the most common Navien error codes in Los Angeles County and its surrounding areas, take a look at our full list here. This list will help you get acquainted with which error codes you might encounter in the future.

But the best way to avoid error codes is by performing yearly maintenance on your Navien tankless water heater. Yearly maintenance is often seen as a requirement in certain areas, like those with hard water. Aside from preventing error codes, maintenance is the best way to ensure your tankless water heater lasts as long as possible.

On top of keeping your Navien tankless water heater running in top form, maintenance can also help keep your unit under warranty. Some manufacturers require regular maintenance as part of the warranty terms. Getting in the habit of scheduling yearly maintenance can help save you some major headaches down the line.

Up to Speed with Navien Error Code 012

We’ve touched on what Navien error code 012 means and how it can be resolved with the help of a professional. With this information, you’ll be able to better communicate your needs to a technician and keep up with them as they describe the next steps. Being able to communicate your issue effectively will make your initial call go a lot smoother and also ensure your issue is resolved quickly.

We’ve spent 15 years addressing tankless water heater error codes, and there isn’t much we haven’t seen. One thing we know for sure is that scheduling regular maintenance can make all the difference in your Navien tankless water heater’s health.

If you have an error code popping on your Navien tankless water heater and need a hand, give us a call at (818) 213-1773 or visit our tankless water heater service page to schedule a consultation.

If you haven’t looked into scheduling yearly maintenance before, reading up on the different types of tankless water heater maintenance is a great place to start. It can also give you a better understanding of what you’re paying for when a technician comes out to perform a maintenance call.