Noritz Error Code 90- How to fix?

If you own a Noritz tankless water heater, you may be familiar with error code 90. This code indicates a problem with the combustion process, which can lead to an interruption in hot water supply. However, there are a few steps you can take to troubleshoot and potentially fix this issue.

First, check the venting system for any blockages or obstructions that may be affecting the combustion process. Make sure that the exhaust and air intake pipes are clear and free from any debris.

Next, inspect the burner for any signs of damage or corrosion. If you notice any issues, it may be necessary to clean or replace the burner to restore proper functionality.

If you have completed these steps and are still experiencing error code 90 on your Noritz water heater, it is recommended to contact a professional technician for further inspection and repair. Attempting to fix complex combustion issues without proper training and expertise can be dangerous and may lead to further damage.

In conclusion, error code 90 on a Noritz water heater can be indicative of combustion problems that require prompt attention. By checking the venting system and inspecting the burner, you may be able to troubleshoot and resolve the issue. However, if the problem persists, it is best to seek professional assistance to ensure the safe and effective operation of your tankless water heater.