What causes a code 16 on a Noritz tank?
A sharp spike in outlet water temperature will cause a code 16. This often results from scale buildup, which hampers heat-transfer efficiency and makes the unit try to compensate by burning hotter. Since this error can be caused by scale buildup or hard water, performing a descaling procedure or using a water softener may resolve it.
Are there any problems with the Noritz water heater?
Problems such as no hot water, not enough hot water, flame loss, water too hot or cold, temperature fluctuation, are just some of the issues that will be identified through the error codes. Before attempting to solve the problem, it will be assumed that the Noritz model was installed properly, per codes and manufacturer instructions.
What does code 11 mean on a Noritz water heater?
Noritz Error Code 11 This indicates ignition failure in your tankless water heater. It means that your unit is not firing up to heat the water, a situation that can be caused by insufficient gas supply, insufficient airflow or debris on the ignition plug.
What does the Noritz error code 29 mean?
Noritz Error Code 29 This code indicates a problem with condensate drainage. In condensing tankless water heaters, a special drain line equipped with a neutralizer (to reduce the acidity of the outflow) removes the condensate.
A sharp spike in outlet water temperature will cause a code 16. This often results from scale buildup, which hampers heat-transfer efficiency and makes the unit try to compensate by burning hotter. Since this error can be caused by scale buildup or hard water, performing a descaling procedure or using a water softener may resolve it.
What does an error code on a Noritz water heater mean?
If the error code still shows up, call a licensed service tech. What it Means: Gas combustion abnormality. How to Fix: Check airflow obstruction and improper gas burning. Confirm correct air/fuel mixture and gas pressure. Once fixed, reset the unit by unplugging for 30 seconds. What it Means: Neutralizer is at the end of its life cycle.
How to troubleshoot a Noritz tankless water heater?
Troubleshooting Noritz tankless water heater error codes isn’t as difficult as it may seem. Noritz, like any other tankless water heater manufacturer, uses a remote controller which can display various error codes on its LCD display to help with troubleshooting. Need to hire a plumber?
What’s the error code on the Noritz cb180?
See the water heater manual or troubleshooting manual for your specific water heater model for expanded detail about the meaning and the corrective steps for each of these error codes. Image: the Noritz CB180 combination boiler, whole house dmoestic water heater, 18,000 to 180,000 BTUh and 0.5 to 9.1 GPM.
