Need A Free Consultation? Call one of our product specialists today at 1.866.766.7489 or email them at sales@noritz.com. Error code 11 on Noritz indicates a problem with your tankless water heater's ignition. This article answers how you can fix Noritz error code 11 easily.
Noritz Error Code 11 - if the electronic control panel shows Noritz Error Code 11, it means that there was an ignition failure in your tankless water heater.. Noritz tankless water heaters are meant to supply hot water for a residence without the use of a large storage tank. The water heater unit is installed on a wall outdoors, and offers features such as a safety lock-out set point, automatic overheat protection, direct ignition, automatic air regulation and resin coated PC boards.