Familiarizing yourself with common error codes and Noritz tankless water heater troubleshooting solutions can be handy. Not all errors require a professional solution. Sometimes, you can deal with the issue if you know what you are dealing with.
Error codes typically represent technical issues in Noritz units. Each error code has its meaning and significance. If you are familiar with each code, you should deal with the issue efficiently, whether fixing it yourself or asking for professional assistance.
Tankless Water Heater Error Codes
The tankless water heater unit is typically connected to a remote control with a display screen. You will see two-digit numbers on the screen when there is an issue, such as error codes 12, 90, 14, or 11. Each number has its meaning, referring to the issue and the core reason. For instance, error code 11 shows an issue with the ignition failure.
Read also: What Causes Noritz Error Code 90
When you buy the unit, you will receive a Noritz tankless water heater manual. Some of the error codes can be found there, but you can always check online if you can’t find them in your manual. Contacting their customer support is another alternative.
In short, you only need to check your remote control’s display screen and see the number. You can consult your manual, check online, or contact customer support.
Troubleshooting Types
Although Noritz units are designed to last, you can’t help it when you encounter minor issues during the operation. For instance, when you discover that your heater won’t ignite when water runs, you can always check whether the water IS running.
Read also: Rinnai Tankless Water Heater Code 11
You can also check for the water drain line filter, crossed pipes, or reversed plumbing. If your heater tries to ignite but doesn’t work, you can try resetting the unit again. The culprit may lie in the gas supply line and the air.
In some cases, homeowners find issues with the water temperature. You can try:
- Checking the gas pressures. See whether it is cut off (by the gas meter or not)
- Checking the water and gas valves. Are they fully open or not?
- Checking the power button. Have you turned it on?
- Checking the water drain valve filter, whether it is clogged or not
- Checking whether the hot water fixture is open sufficiently
Troubleshooting Noritz Tankless Water Heater Issues
When it comes to troubleshooting your Noritz tankless water heater, understanding common error codes and their resolutions is key. Below is a table summarizing some frequent error codes, their causes, and solutions:
| Error Code | Possible Cause | Recommended Action |
|---|---|---|
| 11 | Ignition Failure | Check gas supply, airflow, and ignition plug; contact a contractor if needed |
| 16 | Water Temperature Spike | Descale the unit or use a water softener; consult a professional |
| 29 | Condensate Drainage Problem | Clean out the drain line and container; if unresolved, seek professional help |
| 73 | Improper Circuit Board Settings | Unplug the unit for 30 seconds and plug it back in; if persistent, contact a contractor |
| 90 | Combustion Abnormality | Check gas pressures, venting length, and dip switches; contact a contractor |
Noritz Error Code 14: Thermal Fuse Failure
Error code 14 indicates a thermal fuse failure, a common issue in Noritz tankless water heaters. The primary solution is to replace the thermal fuse. Additionally, it’s crucial to ensure that the unit does not suffer from airflow restrictions or debris on the ignition plug.
From my extensive experience, I’ve found that maintaining proper gas combustion and water quality is vital.
Poor water quality can affect the heat exchange function and lead to scale buildup if not flushed regularly. Annual maintenance, including descaling, can significantly mitigate this issue.
Noritz Error Code 90 Fix
Error code 90 is about the gas combustion issue. The error code can be 90 or 99, but they are the same. You want to check that the color of the flame is light blue. Yellow tips are still allowed. Check the flue vent; see if there is any blockage or such thing alike.
After all, ventilation is crucial for gas heaters, especially for airflow. Ventilation is also crucial to eliminate carbon monoxide poisoning and to reduce risks. If you aren’t familiar with the unit, the best solution is to call a licensed contractor. They know what to do with the heater and how to perform proper checking.
First-Hand Knowledge and Personal Experience
As an expert in the field with over 20 years of servicing Noritz water heaters, I can attest to the importance of regular maintenance and understanding error codes. For example, error code 11, which indicates ignition failure, is often due to issues like insufficient gas supply or airflow problems.
Regularly checking and cleaning the gas valve and ignition plug can prevent this issue.
In my experience, a common cause of error code 16, indicating a water temperature spike, is scale buildup within the unit. I always recommend homeowners perform an annual descaling procedure or use a water softener to prevent such problems. This not only ensures efficient operation but also extends the lifespan of the heater.
Conclusion
Your manual would be your new best friend when caring for your water heater. Check it for minor Noritz tankless water heater troubleshooting issues, but if you can’t find the solution, ask for help from a licensed professional.
