How to Fix Noritz Error Code 63

Noritz is one of the top players in the tankless water heater game, yet now and then, an error code may pop up. Some error codes are unique to specific Noritz tankless units, like Noritz error code 63. This error code may prevent you from using hot water, so are you wondering how to fix Noritz error code 63??

At Monkey Wrench Plumbing, Heating, Air & Electric, our technicians receive specialized training from Noritz field representatives to provide insight on addressing error codes, including Noritz error code 63. By working closely with Noritz, our technicians have been able to fix and clear Noritz error codes from hundreds of homes throughout the Los Angeles area and the surrounding cities.

To learn more about the Noritz brand and their tankless water heaters, check out our Noritz Tankless Water Heater guide.

Ultimately, Noritz error code 63 must be addressed by a certified technician. Still, by the end of this article, you’ll have a clear picture of what causes Noritz error code 63, its symptoms, and how a technician may be able to clear it.

What Does Noritz Error Code 63 Mean?

Noritz error code 63 indicates that there’s a recirculation abnormality with the tankless water heater. Noritz tankless water heaters affected with this error code may experience a delay in hot water delivery to a desired fixture. Some homeowners may have to wait over a minute until a fixture provides hot water.

This error code only appears on the Noritz NRCR series models: NRCR92 and NRCR111. One of the main features of the Noritz NRCR tankless water heaters is their built-in recirculation line.

Even if some homeowners aren’t troubled by the delay in hot water, Noritz error code 63 shouldn’t be ignored. Several things could be happening within the tankless water heater that is causing the error code to appear and can cause further issues if left unresolved.

The recirculation abnormality causing Noritz error code 63 could have been caused by the following.

• Dirty filter: The Noritz NRCR tankless water heaters have a small filter in the crossover valve and return line. If the filter is dirty with debris, the unit may have trouble detecting the recirculation line.
  Air in the recirculation line: Air trapped in the recirculation line can trigger Noritz error code 63.
• Disconnected cable: Another issue that can trigger Noritz error code 63 is a disconnected cable inside the system that oversees the recirculation line.
• Bad crossover valve: The crossover valve is used for homes without a dedicated return line. It helps facilitate the recirculation line of the NRCR tankless water heaters. If there’s an issue with this particular valve, it may cause Noritz error code 63 to appear.
• Circuit board issue: Noritz tankless water heaters have circuit boards that help control some of the features of the units, such as water heating. The circuit board could be faulty, causing error code 63 to pop up on the NRCR tankless water heater.

These are some common reasons why Noritz code 63 can appear, but it can only be diagnosed with a certified technician.

How to Clear Noritz Error Code 63?

The best course of action homeowners dealing with Nortiz error code 63 can take is to call out a tankless water heater technician. The technician will inspect and diagnose the Noritz tankless water heater to determine what is causing the error code.

After inspecting and confirming the root cause of Nortiz error code 63, the technician will provide a few options to resolve the issue. The technician will then repair or replace whatever parts are causing Nortiz error code 63 to appear. The entire process can take two hours, on average.

The cost of fixing Noritz error code 63 varies from business to business. Factors like parts and labor can affect the final price of a tankless water heater repair.

Once the issue is resolved, the technician will perform the necessary tests to determine that the Noritz tankless water heater is working correctly without any problems with its recirculation line. On very rare occasions, there’s a slight possibility that another Noritz error code may appear in the tankless water heater’s lifespan.

How to Address Other Noritz Error Codes?

Although not as common, some Noritz tankless water heaters will experience error codes in their lifespan. These Noritz error codes could appear due to a lack of maintenance or mechanical failure.

• Noritz error code 11
• Noritz error code 12
• Noritz error code 51

Anytime an error code appears on a Noritz tankless water heater, it’s highly recommended to contact a professional technician right away. Even if there’s information online regarding how to fix the problem, a technician is equipped with the tools and experience necessary to address the Noritz error codes. Homeowners may decrease their chances of encountering a Noritz error code by regularly maintaining their tankless water heater.

Water treatment is another helpful way to ensure a tankless water heater encounters fewer error codes. Water softeners help prevent limescale from accumulating on a Noritz tankless water heater and may prevent error codes from appearing.

Moving on From Noritz Error Code 63

Noritz error code 63 may cause some issues with your tankless water heater, but it’s still possible to repair. We’ve covered what may cause Noritz error code 63 to appear and the best course of action to resolve it. This information may help provide clarity when dealing with Noritz error code 63.

Our technicians at Monkey Wrench Plumbing, Heating, Air & Electric have a close working relationship with Noritz to help learn more about Noritz tankless water heaters. These specialized training sessions with Noritz help our technicians prepare for unexpected technical issues, such as Noritz error codes.

Do you need help with a particular Noritz error code? Contact us through the buttons below or book an appointment with an experienced tankless water heater technician through our tankless repair online scheduler.

To learn more about your Noritz tankless water heater overall, check out our free Noritz Tankless Water Heater Guide. Our guide includes everything you need to know about your Noritz tankless water heaters, such as other error codes, maintenance, warranty, and brand comparisons.